Q: What is the sum of all factors of the number 428,680 excluding 428,680?
A: 674,360
The factors of the number 428,680 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1531, 3062, 6124, 7655, 10717, 12248, 15310, 21434, 30620, 42868, 53585, 61240, 85736, 107170, 214340, 428680.
If you add them up, you will get the total of 429,354. Now subtract 428,680 to get 674,360