Q: What is the sum of all factors of the number 128,790 excluding 128,790?

A: 225,018

Why is 225,018 the sum of all factors of 128,790, excluding 128,790?

The factors of the number 128,790 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 81, 90, 106, 135, 159, 162, 243, 265, 270, 318, 405, 477, 486, 530, 795, 810, 954, 1215, 1431, 1590, 2385, 2430, 2862, 4293, 4770, 7155, 8586, 12879, 14310, 21465, 25758, 42930, 64395, 128790.

If you add them up, you will get the total of 129,015. Now subtract 128,790 to get 225,018