Q: What is the sum of all factors of the number 13,980 excluding 13,980?
A: 25,332
The factors of the number 13,980 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 233, 466, 699, 932, 1165, 1398, 2330, 2796, 3495, 4660, 6990, 13980.
If you add them up, you will get the total of 14,005. Now subtract 13,980 to get 25,332