Q: What is the sum of all factors of the number 421,020 excluding 421,020?
A: 856,620
The factors of the number 421,020 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2339, 4678, 7017, 9356, 11695, 14034, 21051, 23390, 28068, 35085, 42102, 46780, 70170, 84204, 105255, 140340, 210510, 421020.
If you add them up, you will get the total of 421,876. Now subtract 421,020 to get 856,620