Q: What is the sum of all factors of the number 7,900 excluding 7,900?
A: 9,460
The factors of the number 7,900 are: 1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3950, 7900.
If you add them up, you will get the total of 7,909. Now subtract 7,900 to get 9,460