Q: What is the sum of all factors of the number 428,520 excluding 428,520?
A: 857,400
The factors of the number 428,520 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 3571, 7142, 10713, 14284, 17855, 21426, 28568, 35710, 42852, 53565, 71420, 85704, 107130, 142840, 214260, 428520.
If you add them up, you will get the total of 429,377. Now subtract 428,520 to get 857,400