Q: What is the sum of all factors of the number 63,980 excluding 63,980?
A: 89,908
The factors of the number 63,980 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 457, 914, 1828, 2285, 3199, 4570, 6398, 9140, 12796, 15995, 31990, 63980.
If you add them up, you will get the total of 64,069. Now subtract 63,980 to get 89,908