Q: What is the sum of all factors of the number 72,135 excluding 72,135?
A: 71,385
The factors of the number 72,135 are: 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 229, 315, 687, 1145, 1603, 2061, 3435, 4809, 8015, 10305, 14427, 24045, 72135.
If you add them up, you will get the total of 72,206. Now subtract 72,135 to get 71,385