Q: What is the sum of all factors of the number 179,640 excluding 179,640?

A: 405,360

Why is 405,360 the sum of all factors of 179,640, excluding 179,640?

The factors of the number 179,640 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 499, 998, 1497, 1996, 2495, 2994, 3992, 4491, 4990, 5988, 7485, 8982, 9980, 11976, 14970, 17964, 19960, 22455, 29940, 35928, 44910, 59880, 89820, 179640.

If you add them up, you will get the total of 180,045. Now subtract 179,640 to get 405,360