Q: What is the sum of all factors of the number 121,990 excluding 121,990?
A: 117,770
The factors of the number 121,990 are: 1, 2, 5, 10, 11, 22, 55, 110, 1109, 2218, 5545, 11090, 12199, 24398, 60995, 121990.
If you add them up, you will get the total of 122,107. Now subtract 121,990 to get 117,770