Q: What is the sum of all factors of the number 65,780 excluding 65,780?

A: 103,564

Why is 103,564 the sum of all factors of 65,780, excluding 65,780?

The factors of the number 65,780 are: 1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 110, 115, 130, 143, 220, 230, 253, 260, 286, 299, 460, 506, 572, 598, 715, 1012, 1196, 1265, 1430, 1495, 2530, 2860, 2990, 3289, 5060, 5980, 6578, 13156, 16445, 32890, 65780.

If you add them up, you will get the total of 65,883. Now subtract 65,780 to get 103,564