Q: What is the sum of all factors of the number 4,905 excluding 4,905?
A: 3,675
The factors of the number 4,905 are: 1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905.
If you add them up, you will get the total of 4,908. Now subtract 4,905 to get 3,675