Q: What is the sum of all factors of the number 61,620 excluding 61,620?

A: 126,540

Why is 126,540 the sum of all factors of 61,620, excluding 61,620?

The factors of the number 61,620 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 195, 237, 260, 316, 390, 395, 474, 780, 790, 948, 1027, 1185, 1580, 2054, 2370, 3081, 4108, 4740, 5135, 6162, 10270, 12324, 15405, 20540, 30810, 61620.

If you add them up, you will get the total of 61,746. Now subtract 61,620 to get 126,540