Q: What is the sum of all factors of the number 180,273,920 excluding 180,273,920?

A: 251,541,520

Why is 251,541,520 the sum of all factors of 180,273,920, excluding 180,273,920?

The factors of the number 180,273,920 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 140839, 281678, 563356, 704195, 1126712, 1408390, 2253424, 2816780, 4506848, 5633560, 9013696, 11267120, 18027392, 22534240, 36054784, 45068480, 90136960, 180273920.

If you add them up, you will get the total of 180,274,171. Now subtract 180,273,920 to get 251,541,520