Hi, I am trying to solve this www.spoj.com/problems/DIVSUM2 but getting TLE . I have pre-calculated primes up-to 10**7 and then for each test-cases i factorize it using O(sqrt(n)) method and then run GP formula for each of the prime factor of the given integer. Here is my solution... http://ideone.com/ZcDbYN... Please Help...
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