Q: What is the sum of all factors of the number 639,328 excluding 639,328?
A: 619,412
The factors of the number 639,328 are: 1, 2, 4, 8, 16, 32, 19979, 39958, 79916, 159832, 319664, 639328.
If you add them up, you will get the total of 639,947. Now subtract 639,328 to get 619,412