Q: What is the sum of all factors of the number 6,280 excluding 6,280?
A: 7,940
The factors of the number 6,280 are: 1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280.
If you add them up, you will get the total of 6,287. Now subtract 6,280 to get 7,940