Q: What is the sum of all factors of the number 25,640,440 including 25,640,440?

Why is 65,933,280 the sum of all factors of 25,640,440, including 25,640,440?

The factors of the number 25,640,440 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 91573, 183146, 366292, 457865, 641011, 732584, 915730, 1282022, 1831460, 2564044, 3205055, 3662920, 5128088, 6410110, 12820220, 25640440.

If you add them up, you will get the total of 65,933,280.

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