Q: What is the sum of all factors of the number 251,003,505 excluding 251,003,505?

A: 157,567,119

Why is 157,567,119 the sum of all factors of 251,003,505, excluding 251,003,505?

The factors of the number 251,003,505 are: 1, 3, 5, 15, 97, 167, 291, 485, 501, 835, 1033, 1455, 2505, 3099, 5165, 15495, 16199, 48597, 80995, 100201, 172511, 242985, 300603, 501005, 517533, 862555, 1503015, 2587665, 16733567, 50200701, 83667835, 251003505.

If you add them up, you will get the total of 251,003,662. Now subtract 251,003,505 to get 157,567,119