Q: What is the sum of all factors of the number 3,225 excluding 3,225?
A: 2,231
The factors of the number 3,225 are: 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225.
If you add them up, you will get the total of 3,227. Now subtract 3,225 to get 2,231