Q: What is the sum of all factors of the number 655,720 excluding 655,720?

A: 958,340

Why is 958,340 the sum of all factors of 655,720, excluding 655,720?

The factors of the number 655,720 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 169, 194, 260, 338, 388, 485, 520, 676, 776, 845, 970, 1261, 1352, 1690, 1940, 2522, 3380, 3880, 5044, 6305, 6760, 10088, 12610, 16393, 25220, 32786, 50440, 65572, 81965, 131144, 163930, 327860, 655720.

If you add them up, you will get the total of 656,678. Now subtract 655,720 to get 958,340