Q: What is the sum of all factors of the number 306,021,780 excluding 306,021,780?

A: 646,047,660

Why is 646,047,660 the sum of all factors of 306,021,780, excluding 306,021,780?

The factors of the number 306,021,780 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 566707, 1133414, 1700121, 2266828, 2833535, 3400242, 5100363, 5667070, 6800484, 8500605, 10200726, 11334140, 15301089, 17001210, 20401452, 25501815, 30602178, 34002420, 51003630, 61204356, 76505445, 102007260, 153010890, 306021780.

If you add them up, you will get the total of 306,022,426. Now subtract 306,021,780 to get 646,047,660