Q: What is the sum of all factors of the number 321,220,100 excluding 321,220,100?

A: 416,834,224

Why is 416,834,224 the sum of all factors of 321,220,100, excluding 321,220,100?

The factors of the number 321,220,100 are: 1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 188953, 377906, 755812, 944765, 1889530, 3212201, 3779060, 4723825, 6424402, 9447650, 12848804, 16061005, 18895300, 32122010, 64244020, 80305025, 160610050, 321220100.

If you add them up, you will get the total of 321,220,516. Now subtract 321,220,100 to get 416,834,224