Q: What is the sum of all factors of the number 261,720 excluding 261,720?

A: 590,040

Why is 590,040 the sum of all factors of 261,720, excluding 261,720?

The factors of the number 261,720 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 727, 1454, 2181, 2908, 3635, 4362, 5816, 6543, 7270, 8724, 10905, 13086, 14540, 17448, 21810, 26172, 29080, 32715, 43620, 52344, 65430, 87240, 130860, 261720.

If you add them up, you will get the total of 262,310. Now subtract 261,720 to get 590,040