Q: What is the sum of all factors of the number 421,830 excluding 421,830?
A: 710,730
The factors of the number 421,830 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 109, 129, 215, 218, 258, 327, 387, 430, 545, 645, 654, 774, 981, 1090, 1290, 1635, 1935, 1962, 3270, 3870, 4687, 4905, 9374, 9810, 14061, 23435, 28122, 42183, 46870, 70305, 84366, 140610, 210915, 421830.
If you add them up, you will get the total of 422,540. Now subtract 421,830 to get 710,730