Q: What is the sum of all factors of the number 57,420 excluding 57,420?

A: 139,140

Why is 139,140 the sum of all factors of 57,420, excluding 57,420?

The factors of the number 57,420 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 29, 30, 33, 36, 44, 45, 55, 58, 60, 66, 87, 90, 99, 110, 116, 132, 145, 165, 174, 180, 198, 220, 261, 290, 319, 330, 348, 396, 435, 495, 522, 580, 638, 660, 870, 957, 990, 1044, 1276, 1305, 1595, 1740, 1914, 1980, 2610, 2871, 3190, 3828, 4785, 5220, 5742, 6380, 9570, 11484, 14355, 19140, 28710, 57420.

If you add them up, you will get the total of 57,559. Now subtract 57,420 to get 139,140