Q: What is the sum of all factors of the number 31,428,900 excluding 31,428,900?

Why is 69,314,652 the sum of all factors of 31,428,900, excluding 31,428,900?

The factors of the number 31,428,900 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 47, 50, 60, 75, 90, 94, 100, 141, 150, 180, 188, 225, 235, 282, 300, 423, 450, 470, 564, 705, 743, 846, 900, 940, 1175, 1410, 1486, 1692, 2115, 2229, 2350, 2820, 2972, 3525, 3715, 4230, 4458, 4700, 6687, 7050, 7430, 8460, 8916, 10575, 11145, 13374, 14100, 14860, 18575, 21150, 22290, 26748, 33435, 34921, 37150, 42300, 44580, 55725, 66870, 69842, 74300, 104763, 111450, 133740, 139684, 167175, 174605, 209526, 222900, 314289, 334350, 349210, 419052, 523815, 628578, 668700, 698420, 873025, 1047630, 1257156, 1571445, 1746050, 2095260, 2619075, 3142890, 3492100, 5238150, 6285780, 7857225, 10476300, 15714450, 31428900.

If you add them up, you will get the total of 31,428,969. Now subtract 31,428,900 to get 69,314,652

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