spoj: Pair Divisible 2

Revision en1, by abdelkarim, 2016-05-23 00:21:00

Hello everybody,

I'm trying to solve this problem i noticed something in the tags "fast-moebius-transform" so i ask if someone has an idea about the topic or any idea to solve this problem.

My observation till now, - The total number of divisors for any given N will be at most 5^7

Many Thanks.

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en1 English abdelkarim 2016-05-23 00:21:00 369 Initial revision (published)