Q: What is the sum of all factors of the number 12,290 excluding 12,290?
A: 9,850
The factors of the number 12,290 are: 1, 2, 5, 10, 1229, 2458, 6145, 12290.
If you add them up, you will get the total of 12,299. Now subtract 12,290 to get 9,850