Q: What is the sum of all factors of the number 401,420 excluding 401,420?
A: 441,604
The factors of the number 401,420 are: 1, 2, 4, 5, 10, 20, 20071, 40142, 80284, 100355, 200710, 401420.
If you add them up, you will get the total of 401,861. Now subtract 401,420 to get 441,604