Q: What is the sum of all factors of the number 390,288 excluding 390,288?

A: 645,360

Why is 645,360 the sum of all factors of 390,288, excluding 390,288?

The factors of the number 390,288 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 94, 141, 173, 188, 282, 346, 376, 519, 564, 692, 752, 1038, 1128, 1384, 2076, 2256, 2768, 4152, 8131, 8304, 16262, 24393, 32524, 48786, 65048, 97572, 130096, 195144, 390288.

If you add them up, you will get the total of 390,933. Now subtract 390,288 to get 645,360