Q: What is the sum of all factors of the number 64,440 excluding 64,440?

A: 146,160

Why is 146,160 the sum of all factors of 64,440, excluding 64,440?

The factors of the number 64,440 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 179, 180, 358, 360, 537, 716, 895, 1074, 1432, 1611, 1790, 2148, 2685, 3222, 3580, 4296, 5370, 6444, 7160, 8055, 10740, 12888, 16110, 21480, 32220, 64440.

If you add them up, you will get the total of 64,586. Now subtract 64,440 to get 146,160