Q: What is the sum of all factors of the number 638,930 excluding 638,930?
A: 520,774
The factors of the number 638,930 are: 1, 2, 5, 10, 181, 353, 362, 706, 905, 1765, 1810, 3530, 63893, 127786, 319465, 638930.
If you add them up, you will get the total of 639,450. Now subtract 638,930 to get 520,774