Q: What is the sum of all factors of the number 1,178,520 including 1,178,520?

Why is 4,285,440 the sum of all factors of 1,178,520, including 1,178,520?

The factors of the number 1,178,520 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 61, 69, 70, 84, 92, 105, 115, 120, 122, 138, 140, 161, 168, 183, 184, 210, 230, 244, 276, 280, 305, 322, 345, 366, 420, 427, 460, 483, 488, 552, 610, 644, 690, 732, 805, 840, 854, 915, 920, 966, 1220, 1281, 1288, 1380, 1403, 1464, 1610, 1708, 1830, 1932, 2135, 2415, 2440, 2562, 2760, 2806, 3220, 3416, 3660, 3864, 4209, 4270, 4830, 5124, 5612, 6405, 6440, 7015, 7320, 8418, 8540, 9660, 9821, 10248, 11224, 12810, 14030, 16836, 17080, 19320, 19642, 21045, 25620, 28060, 29463, 33672, 39284, 42090, 49105, 51240, 56120, 58926, 78568, 84180, 98210, 117852, 147315, 168360, 196420, 235704, 294630, 392840, 589260, 1178520.

If you add them up, you will get the total of 4,285,440.

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