Q: What is the sum of all factors of the number 389,500 excluding 389,500?

A: 527,780

Why is 527,780 the sum of all factors of 389,500, excluding 389,500?

The factors of the number 389,500 are: 1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 125, 164, 190, 205, 250, 380, 410, 475, 500, 779, 820, 950, 1025, 1558, 1900, 2050, 2375, 3116, 3895, 4100, 4750, 5125, 7790, 9500, 10250, 15580, 19475, 20500, 38950, 77900, 97375, 194750, 389500.

If you add them up, you will get the total of 390,027. Now subtract 389,500 to get 527,780