Q: What is the sum of all factors of the number 10,780 excluding 10,780?
A: 17,948
The factors of the number 10,780 are: 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780.
If you add them up, you will get the total of 10,797. Now subtract 10,780 to get 17,948