Q: What is the sum of all factors of the number 641,660 excluding 641,660?
A: 705,868
The factors of the number 641,660 are: 1, 2, 4, 5, 10, 20, 32083, 64166, 128332, 160415, 320830, 641660.
If you add them up, you will get the total of 642,365. Now subtract 641,660 to get 705,868