Q: What is the sum of all factors of the number 288,400 excluding 288,400?

A: 511,152

Why is 511,152 the sum of all factors of 288,400, excluding 288,400?

The factors of the number 288,400 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 103, 112, 140, 175, 200, 206, 280, 350, 400, 412, 515, 560, 700, 721, 824, 1030, 1400, 1442, 1648, 2060, 2575, 2800, 2884, 3605, 4120, 5150, 5768, 7210, 8240, 10300, 11536, 14420, 18025, 20600, 28840, 36050, 41200, 57680, 72100, 144200, 288400.

If you add them up, you will get the total of 288,911. Now subtract 288,400 to get 511,152