Q: What is the sum of all factors of the number 428,800 excluding 428,800?

A: 648,388

Why is 648,388 the sum of all factors of 428,800, excluding 428,800?

The factors of the number 428,800 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 67, 80, 100, 128, 134, 160, 200, 256, 268, 320, 335, 400, 536, 640, 670, 800, 1072, 1280, 1340, 1600, 1675, 2144, 2680, 3200, 3350, 4288, 5360, 6400, 6700, 8576, 10720, 13400, 17152, 21440, 26800, 42880, 53600, 85760, 107200, 214400, 428800.

If you add them up, you will get the total of 429,448. Now subtract 428,800 to get 648,388