Q: What is the sum of all factors of the number 144,405,560 excluding 144,405,560?

A: 205,501,480

Why is 205,501,480 the sum of all factors of 144,405,560, excluding 144,405,560?

The factors of the number 144,405,560 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 277703, 555406, 1110812, 1388515, 2221624, 2777030, 3610139, 5554060, 7220278, 11108120, 14440556, 18050695, 28881112, 36101390, 72202780, 144405560.

If you add them up, you will get the total of 144,405,765. Now subtract 144,405,560 to get 205,501,480