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Weird Sum

CodeChefRating 2889Open on judge ↗

Recently, Chef Alex invented a weird function F. Give an integer n (n ≥ 2), consider the prime factorization n = p1k1 · p2k2 · … · prkr. Let g = gcd(k1, k2, … kr) and mi = ki / g. The function F is defined as: F(n) = p1m1 · p2m2 · … · prmr. Now, Alex is interested in summing up the value of this function for the first N natural numbers (other than 1, since its prime factorization is undefined

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solution.cppC++17

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