Q: What is the sum of all factors of the number 80,400 excluding 80,400?

A: 180,992

Why is 180,992 the sum of all factors of 80,400, excluding 80,400?

The factors of the number 80,400 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 67, 75, 80, 100, 120, 134, 150, 200, 201, 240, 268, 300, 335, 400, 402, 536, 600, 670, 804, 1005, 1072, 1200, 1340, 1608, 1675, 2010, 2680, 3216, 3350, 4020, 5025, 5360, 6700, 8040, 10050, 13400, 16080, 20100, 26800, 40200, 80400.

If you add them up, you will get the total of 80,580. Now subtract 80,400 to get 180,992