Q: What is the sum of all factors of the number 517,720 excluding 517,720?

A: 845,240

Why is 845,240 the sum of all factors of 517,720, excluding 517,720?

The factors of the number 517,720 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 1849, 2408, 3010, 3698, 6020, 7396, 9245, 12040, 12943, 14792, 18490, 25886, 36980, 51772, 64715, 73960, 103544, 129430, 258860, 517720.

If you add them up, you will get the total of 518,565. Now subtract 517,720 to get 845,240