Problem 57675. Easy Sequences 94: GCD Sums

Given positive integer x, write the function gSum(x), that sums all the GCD's of the integer pairs . For example in the Excel screenshot below, it is claro that when , the function should return .
Please limit the cody program size of the function to 150. This problem is not so hard. Good luck!

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42.86% Correct | 57.14% Incorrect
Last Solution submitted on Apr 21, 2024

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