Q: What is the sum of all factors of the number 79,880 excluding 79,880?
A: 99,940
The factors of the number 79,880 are: 1, 2, 4, 5, 8, 10, 20, 40, 1997, 3994, 7988, 9985, 15976, 19970, 39940, 79880.
If you add them up, you will get the total of 79,979. Now subtract 79,880 to get 99,940