Q: What is the sum of all factors of the number 123,980 excluding 123,980?
A: 136,420
The factors of the number 123,980 are: 1, 2, 4, 5, 10, 20, 6199, 12398, 24796, 30995, 61990, 123980.
If you add them up, you will get the total of 124,116. Now subtract 123,980 to get 136,420