Q: What is the sum of all factors of the number 31,400 excluding 31,400?
A: 42,070
The factors of the number 31,400 are: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 628, 785, 1256, 1570, 3140, 3925, 6280, 7850, 15700, 31400.
If you add them up, you will get the total of 31,442. Now subtract 31,400 to get 42,070