The factors of the number 2,188,620 are: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 193, 210, 252, 270, 315, 324, 378, 386, 405, 420, 540, 567, 579, 630, 756, 772, 810, 945, 965, 1134, 1158, 1260, 1351, 1620, 1737, 1890, 1930, 2268, 2316, 2702, 2835, 2895, 3474, 3780, 3860, 4053, 5211, 5404, 5670, 5790, 6755, 6948, 8106, 8685, 10422, 11340, 11580, 12159, 13510, 15633, 16212, 17370, 20265, 20844, 24318, 26055, 27020, 31266, 34740, 36477, 40530, 48636, 52110, 60795, 62532, 72954, 78165, 81060, 104220, 109431, 121590, 145908, 156330, 182385, 218862, 243180, 312660, 364770, 437724, 547155, 729540, 1094310, 2188620.
If you add them up, you will get the total of 7,887,264.