Q: What is the sum of all factors of the number 11,580 excluding 11,580?
A: 21,012
The factors of the number 11,580 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 193, 386, 579, 772, 965, 1158, 1930, 2316, 2895, 3860, 5790, 11580.
If you add them up, you will get the total of 11,601. Now subtract 11,580 to get 21,012