Q: What is the sum of all factors of the number 15,401,840 excluding 15,401,840?

A: 20,875,600

Why is 20,875,600 the sum of all factors of 15,401,840, excluding 15,401,840?

The factors of the number 15,401,840 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2437, 3160, 4874, 6320, 9748, 12185, 19496, 24370, 38992, 48740, 97480, 192523, 194960, 385046, 770092, 962615, 1540184, 1925230, 3080368, 3850460, 7700920, 15401840.

If you add them up, you will get the total of 15,401,860. Now subtract 15,401,840 to get 20,875,600