Q: What is the sum of all factors of the number 64,320 excluding 64,320?

A: 142,944

Why is 142,944 the sum of all factors of 64,320, excluding 64,320?

The factors of the number 64,320 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 134, 160, 192, 201, 240, 268, 320, 335, 402, 480, 536, 670, 804, 960, 1005, 1072, 1340, 1608, 2010, 2144, 2680, 3216, 4020, 4288, 5360, 6432, 8040, 10720, 12864, 16080, 21440, 32160, 64320.

If you add them up, you will get the total of 64,462. Now subtract 64,320 to get 142,944