Q: What is the sum of all factors of the number 677,680 excluding 677,680?

A: 942,752

Why is 942,752 the sum of all factors of 677,680, excluding 677,680?

The factors of the number 677,680 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 197, 215, 344, 394, 430, 688, 788, 860, 985, 1576, 1720, 1970, 3152, 3440, 3940, 7880, 8471, 15760, 16942, 33884, 42355, 67768, 84710, 135536, 169420, 338840, 677680.

If you add them up, you will get the total of 678,622. Now subtract 677,680 to get 942,752