Q: What is the sum of all factors of the number 1,421,840 including 1,421,840?

A: 3,779,520

Why is 3,779,520 the sum of all factors of 1,421,840, including 1,421,840?

The factors of the number 1,421,840 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2539, 5078, 10156, 12695, 17773, 20312, 25390, 35546, 40624, 50780, 71092, 88865, 101560, 142184, 177730, 203120, 284368, 355460, 710920, 1421840.

If you add them up, you will get the total of 3,779,520.