Problem 53745. Easy Sequences 60: Almost Cube Root
The almost cube root of an integer x, is the largest possible integer r, such that and . For example , then , since and since the next larger divisor of which is 6, does not qualify because . Obviously, if x is a perfect cube, then .
Given an integer n, please find sum of the "almost cube roots" of all integers from 1 to For , the program ouput should be :
where: is the almost cube root of i.
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