Q: What is the sum of all factors of the number 408,375 excluding 408,375?

A: 421,545

Why is 421,545 the sum of all factors of 408,375, excluding 408,375?

The factors of the number 408,375 are: 1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 121, 125, 135, 165, 225, 275, 297, 363, 375, 495, 605, 675, 825, 1089, 1125, 1375, 1485, 1815, 2475, 3025, 3267, 3375, 4125, 5445, 7425, 9075, 12375, 15125, 16335, 27225, 37125, 45375, 81675, 136125, 408375.

If you add them up, you will get the total of 408,796. Now subtract 408,375 to get 421,545