Q: What is the sum of all factors of the number 40,404,390 excluding 40,404,390?

A: 64,734,042

Why is 64,734,042 the sum of all factors of 40,404,390, excluding 40,404,390?

The factors of the number 40,404,390 are: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 211, 390, 422, 491, 633, 982, 1055, 1266, 1473, 2110, 2455, 2743, 2946, 3165, 4910, 5486, 6330, 6383, 7365, 8229, 12766, 13715, 14730, 16458, 19149, 27430, 31915, 38298, 41145, 63830, 82290, 95745, 103601, 191490, 207202, 310803, 518005, 621606, 1036010, 1346813, 1554015, 2693626, 3108030, 4040439, 6734065, 8080878, 13468130, 20202195, 40404390.

If you add them up, you will get the total of 40,404,454. Now subtract 40,404,390 to get 64,734,042