Sequence Summation

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Problem Statement For a sequence a1, a2, a3 ..... an , it is known that In the above image d|n means d divides n. You are given Q queries. For each query, find the sum of al, a(l+1), a(l+2), ..... a(r-1), ar, for given values of l and r. Since, answer is larger, output is modulo (109 + 7). Input section The first line contains, Q, denoting the number of queries. Each query contains 2 i

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solution.cppC++17

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