The package for this problem was not updated by the problem writer or Codeforces administration after we've upgraded the judging servers. To adjust the time limit constraint, a solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then the value 800 ms will be displayed and used to determine the verdict.

Codeforces Round 182 (Div. 1) |
---|

Finished |

Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

data structures

*2200

No tag edit access

The problem statement has recently been changed. View the changes.

×
D. Yaroslav and Divisors

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYaroslav has an array *p* = *p*_{1}, *p*_{2}, ..., *p*_{n} (1 ≤ *p*_{i} ≤ *n*), consisting of *n* distinct integers. Also, he has *m* queries:

- Query number
*i*is represented as a pair of integers*l*_{i},*r*_{i}(1 ≤*l*_{i}≤*r*_{i}≤*n*). - The answer to the query
*l*_{i},*r*_{i}is the number of pairs of integers*q*,*w*(*l*_{i}≤*q*,*w*≤*r*_{i}) such that*p*_{q}is the divisor of*p*_{w}.

Help Yaroslav, answer all his queries.

Input

The first line contains the integers *n* and *m* (1 ≤ *n*, *m* ≤ 2·10^{5}). The second line contains *n* distinct integers *p*_{1}, *p*_{2}, ..., *p*_{n} (1 ≤ *p*_{i} ≤ *n*). The following *m* lines contain Yaroslav's queries. The *i*-th line contains integers *l*_{i}, *r*_{i} (1 ≤ *l*_{i} ≤ *r*_{i} ≤ *n*).

Output

Print *m* integers — the answers to Yaroslav's queries in the order they appear in the input.

Please, do not use the %lld specifier to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specifier.

Examples

Input

1 1

1

1 1

Output

1

Input

10 9

1 2 3 4 5 6 7 8 9 10

1 10

2 9

3 8

4 7

5 6

2 2

9 10

5 10

4 10

Output

27

14

8

4

2

1

2

7

9

Codeforces (c) Copyright 2010-2023 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Jun/10/2023 23:21:43 (g1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|