Q: What is the sum of all factors of the number 641,645 excluding 641,645?
A: 133,675
The factors of the number 641,645 are: 1, 5, 181, 709, 905, 3545, 128329, 641645.
If you add them up, you will get the total of 641,778. Now subtract 641,645 to get 133,675