Q: What is the sum of all factors of the number 402,143,330 excluding 402,143,330?

A: 378,773,134

Why is 378,773,134 the sum of all factors of 402,143,330, excluding 402,143,330?

The factors of the number 402,143,330 are: 1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 4505, 9010, 44633, 89266, 223165, 446330, 758761, 1517522, 2365549, 3793805, 4731098, 7587610, 11827745, 23655490, 40214333, 80428666, 201071665, 402143330.

If you add them up, you will get the total of 402,143,708. Now subtract 402,143,330 to get 378,773,134