Q: What is the sum of all factors of the number 4,780 excluding 4,780?
A: 5,300
The factors of the number 4,780 are: 1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780.
If you add them up, you will get the total of 4,785. Now subtract 4,780 to get 5,300