Q: What is the sum of all factors of the number 378,400 excluding 378,400?

A: 652,784

Why is 652,784 the sum of all factors of 378,400, excluding 378,400?

The factors of the number 378,400 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 43, 44, 50, 55, 80, 86, 88, 100, 110, 160, 172, 176, 200, 215, 220, 275, 344, 352, 400, 430, 440, 473, 550, 688, 800, 860, 880, 946, 1075, 1100, 1376, 1720, 1760, 1892, 2150, 2200, 2365, 3440, 3784, 4300, 4400, 4730, 6880, 7568, 8600, 8800, 9460, 11825, 15136, 17200, 18920, 23650, 34400, 37840, 47300, 75680, 94600, 189200, 378400.

If you add them up, you will get the total of 379,052. Now subtract 378,400 to get 652,784