Problem 57685. Easy Sequences 95: LCM Sums

For a given n, write the function lcmSum(n), defined as follows:
For example for :
>> lcmSum = @(n) sum(lcm(n,1:n));
>> lcmSum(20)
ans =
2320
Since the sum grows very fast, please present your answer as a character string array and please limit the cody program size of the function to 150.
Solve

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100.0% Correct | 0.0% Incorrect
Last Solution submitted on Sep 12, 2024

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easy lcm number theory simple

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