Q: What is the sum of all factors of the number 90,780 excluding 90,780?

A: 181,380

Why is 181,380 the sum of all factors of 90,780, excluding 90,780?

The factors of the number 90,780 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 89, 102, 170, 178, 204, 255, 267, 340, 356, 445, 510, 534, 890, 1020, 1068, 1335, 1513, 1780, 2670, 3026, 4539, 5340, 6052, 7565, 9078, 15130, 18156, 22695, 30260, 45390, 90780.

If you add them up, you will get the total of 90,961. Now subtract 90,780 to get 181,380