Q: What is the sum of all factors of the number 321,520,440 excluding 321,520,440?

A: 643,041,240

Why is 643,041,240 the sum of all factors of 321,520,440, excluding 321,520,440?

The factors of the number 321,520,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2679337, 5358674, 8038011, 10717348, 13396685, 16076022, 21434696, 26793370, 32152044, 40190055, 53586740, 64304088, 80380110, 107173480, 160760220, 321520440.

If you add them up, you will get the total of 321,521,083. Now subtract 321,520,440 to get 643,041,240