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Multiplicative function related problem -> UVA 12546 — LCM Pair Sum

Revision en2, by Tobby_And_Friends, 2017-01-18 14:25:48

Problem Link: https://uva.onlinejudge.org/external/125/12546.pdf

I understand that LCM is a multiplicative function. So, for the case where n = 6, it should be like f(6) = f(2) * f(3), f(2) = (1 + 2) + (2 + 2) = 7, f(3) = (1 + 3) + (3 + 3) = 10, therefore f(6) = f(2) * f(3) = 7 * 10 = 70. But this is the wrong answer. Someone please help me out to figure out the right solution. Any help is really appreciated.

Tags lcm, number theory

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  Rev. Lang. By When Δ Comment
en2 English Tobby_And_Friends 2017-01-18 14:25:48 70
en1 English Tobby_And_Friends 2017-01-18 14:24:50 414 Initial revision (published)