Q: What is the sum of all factors of the number 161,600 excluding 161,600?

A: 239,974

Why is 239,974 the sum of all factors of 161,600, excluding 161,600?

The factors of the number 161,600 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 160, 200, 202, 320, 400, 404, 505, 800, 808, 1010, 1600, 1616, 2020, 2525, 3232, 4040, 5050, 6464, 8080, 10100, 16160, 20200, 32320, 40400, 80800, 161600.

If you add them up, you will get the total of 161,839. Now subtract 161,600 to get 239,974