Q: What is the sum of all factors of the number 215,705,005 excluding 215,705,005?

A: 67,197,395

Why is 67,197,395 the sum of all factors of 215,705,005, excluding 215,705,005?

The factors of the number 215,705,005 are: 1, 5, 19, 37, 95, 109, 185, 545, 563, 703, 2071, 2815, 3515, 4033, 10355, 10697, 20165, 20831, 53485, 61367, 76627, 104155, 306835, 383135, 395789, 1165973, 1978945, 2270579, 5829865, 11352895, 43141001, 215705005.

If you add them up, you will get the total of 215,705,072. Now subtract 215,705,005 to get 67,197,395