Q: What is the sum of all factors of the number 123,540 excluding 123,540?

A: 239,340

Why is 239,340 the sum of all factors of 123,540, excluding 123,540?

The factors of the number 123,540 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 71, 87, 116, 142, 145, 174, 213, 284, 290, 348, 355, 426, 435, 580, 710, 852, 870, 1065, 1420, 1740, 2059, 2130, 4118, 4260, 6177, 8236, 10295, 12354, 20590, 24708, 30885, 41180, 61770, 123540.

If you add them up, you will get the total of 123,779. Now subtract 123,540 to get 239,340