Q: What is the sum of all factors of the number 421,420 including 421,420?
A: 932,400
The factors of the number 421,420 are: 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1109, 2218, 4436, 5545, 11090, 21071, 22180, 42142, 84284, 105355, 210710, 421420.
If you add them up, you will get the total of 932,400.