Q: What is the sum of all factors of the number 420,805 excluding 420,805?
A: 209,339
The factors of the number 420,805 are: 1, 5, 7, 11, 35, 55, 77, 385, 1093, 5465, 7651, 12023, 38255, 60115, 84161, 420805.
If you add them up, you will get the total of 421,014. Now subtract 420,805 to get 209,339