Q: What is the sum of all factors of the number 515,622,640 excluding 515,622,640?

A: 775,419,728

Why is 775,419,728 the sum of all factors of 515,622,640, excluding 515,622,640?

The factors of the number 515,622,640 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 495791, 991582, 1983164, 2478955, 3966328, 4957910, 6445283, 7932656, 9915820, 12890566, 19831640, 25781132, 32226415, 39663280, 51562264, 64452830, 103124528, 128905660, 257811320, 515622640.

If you add them up, you will get the total of 515,623,415. Now subtract 515,622,640 to get 775,419,728