Q: What is the sum of all factors of the number 130,720 excluding 130,720?

A: 201,920

Why is 201,920 the sum of all factors of 130,720, excluding 130,720?

The factors of the number 130,720 are: 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 76, 80, 86, 95, 152, 160, 172, 190, 215, 304, 344, 380, 430, 608, 688, 760, 817, 860, 1376, 1520, 1634, 1720, 3040, 3268, 3440, 4085, 6536, 6880, 8170, 13072, 16340, 26144, 32680, 65360, 130720.

If you add them up, you will get the total of 130,921. Now subtract 130,720 to get 201,920