Q: What is the sum of all factors of the number 2,420 excluding 2,420?
A: 3,166
The factors of the number 2,420 are: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420.
If you add them up, you will get the total of 2,423. Now subtract 2,420 to get 3,166