Q: What is the sum of all factors of the number 289,275 excluding 289,275?

A: 305,925

Why is 305,925 the sum of all factors of 289,275, excluding 289,275?

The factors of the number 289,275 are: 1, 3, 5, 7, 15, 19, 21, 25, 29, 35, 57, 75, 87, 95, 105, 133, 145, 175, 203, 285, 399, 435, 475, 525, 551, 609, 665, 725, 1015, 1425, 1653, 1995, 2175, 2755, 3045, 3325, 3857, 5075, 8265, 9975, 11571, 13775, 15225, 19285, 41325, 57855, 96425, 289275.

If you add them up, you will get the total of 289,580. Now subtract 289,275 to get 305,925