Q: What is the sum of all factors of the number 22,780 excluding 22,780?
A: 28,628
The factors of the number 22,780 are: 1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780.
If you add them up, you will get the total of 22,808. Now subtract 22,780 to get 28,628