Q: What is the sum of all factors of the number 7,830 excluding 7,830?
A: 13,770
The factors of the number 7,830 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 3915, 7830.
If you add them up, you will get the total of 7,843. Now subtract 7,830 to get 13,770