Q: What is the sum of all factors of the number 125,100 excluding 125,100?

A: 269,840

Why is 269,840 the sum of all factors of 125,100, excluding 125,100?

The factors of the number 125,100 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 139, 150, 180, 225, 278, 300, 417, 450, 556, 695, 834, 900, 1251, 1390, 1668, 2085, 2502, 2780, 3475, 4170, 5004, 6255, 6950, 8340, 10425, 12510, 13900, 20850, 25020, 31275, 41700, 62550, 125100.

If you add them up, you will get the total of 125,369. Now subtract 125,100 to get 269,840