Q: What is the sum of all factors of the number 8,409,980 excluding 8,409,980?
A: 9,251,020
The factors of the number 8,409,980 are: 1, 2, 4, 5, 10, 20, 420499, 840998, 1681996, 2102495, 4204990, 8409980.
If you add them up, you will get the total of 8,409,989. Now subtract 8,409,980 to get 9,251,020