Q: What is the sum of all factors of the number 128,661 excluding 128,661?
A: 56,139
The factors of the number 128,661 are: 1, 3, 13, 39, 3299, 9897, 42887, 128661.
If you add them up, you will get the total of 128,717. Now subtract 128,661 to get 56,139