Q: What is the sum of all factors of the number 20,300 excluding 20,300?
A: 31,780
The factors of the number 20,300 are: 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4060, 5075, 10150, 20300.
If you add them up, you will get the total of 20,331. Now subtract 20,300 to get 31,780