Q: What is the sum of all factors of the number 1,353,440 excluding 1,353,440?

A: 2,139,280

Why is 2,139,280 the sum of all factors of 1,353,440, excluding 1,353,440?

The factors of the number 1,353,440 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 769, 880, 1538, 1760, 3076, 3845, 6152, 7690, 8459, 12304, 15380, 16918, 24608, 30760, 33836, 42295, 61520, 67672, 84590, 123040, 135344, 169180, 270688, 338360, 676720, 1353440.

If you add them up, you will get the total of 1,353,442. Now subtract 1,353,440 to get 2,139,280