Q: What is the sum of all factors of the number 652,720 excluding 652,720?

A: 909,680

Why is 909,680 the sum of all factors of 652,720, excluding 652,720?

The factors of the number 652,720 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 199, 205, 328, 398, 410, 656, 796, 820, 995, 1592, 1640, 1990, 3184, 3280, 3980, 7960, 8159, 15920, 16318, 32636, 40795, 65272, 81590, 130544, 163180, 326360, 652720.

If you add them up, you will get the total of 653,629. Now subtract 652,720 to get 909,680