Q: What is the sum of all factors of the number 8,220 excluding 8,220?
A: 14,964
The factors of the number 8,220 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2740, 4110, 8220.
If you add them up, you will get the total of 8,234. Now subtract 8,220 to get 14,964