Q: What is the sum of all factors of the number 408,900 excluding 408,900?

A: 841,020

Why is 841,020 the sum of all factors of 408,900, excluding 408,900?

The factors of the number 408,900 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 47, 50, 58, 60, 75, 87, 94, 100, 116, 141, 145, 150, 174, 188, 235, 282, 290, 300, 348, 435, 470, 564, 580, 705, 725, 870, 940, 1175, 1363, 1410, 1450, 1740, 2175, 2350, 2726, 2820, 2900, 3525, 4089, 4350, 4700, 5452, 6815, 7050, 8178, 8700, 13630, 14100, 16356, 20445, 27260, 34075, 40890, 68150, 81780, 102225, 136300, 204450, 408900.

If you add them up, you will get the total of 409,741. Now subtract 408,900 to get 841,020