Q: What is the sum of all factors of the number 12,400 excluding 12,400?
A: 18,352
The factors of the number 12,400 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400.
If you add them up, you will get the total of 12,418. Now subtract 12,400 to get 18,352