Q: What is the sum of all factors of the number 2,140 excluding 2,140?
A: 2,396
The factors of the number 2,140 are: 1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140.
If you add them up, you will get the total of 2,142. Now subtract 2,140 to get 2,396