Q: What is the sum of all factors of the number 20,206,025 excluding 20,206,025?

A: 10,744,375

Why is 10,744,375 the sum of all factors of 20,206,025, excluding 20,206,025?

The factors of the number 20,206,025 are: 1, 5, 7, 19, 25, 35, 59, 95, 103, 133, 175, 295, 413, 475, 515, 665, 721, 1121, 1475, 1957, 2065, 2575, 3325, 3605, 5605, 6077, 7847, 9785, 10325, 13699, 18025, 28025, 30385, 39235, 42539, 48925, 68495, 115463, 151925, 196175, 212695, 342475, 577315, 808241, 1063475, 2886575, 4041205, 20206025.

If you add them up, you will get the total of 20,206,035. Now subtract 20,206,025 to get 10,744,375