Q: What is the sum of all factors of the number 31,590 excluding 31,590?

A: 60,138

Why is 60,138 the sum of all factors of 31,590, excluding 31,590?

The factors of the number 31,590 are: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 243, 270, 351, 390, 405, 486, 585, 702, 810, 1053, 1170, 1215, 1755, 2106, 2430, 3159, 3510, 5265, 6318, 10530, 15795, 31590.

If you add them up, you will get the total of 31,650. Now subtract 31,590 to get 60,138