MathDB
2019 MOAA Team P9

Source:

January 23, 2022
number theoryteam2019

Problem Statement

Jonathan finds all ordered triples (a,b,c)(a, b, c) of positive integers such that abc=720abc = 720. For each ordered triple, he writes their sum a+b+ca + b + c on the board. (Numbers may appear more than once.) What is the sum of all the numbers written on the board?
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