The factors of the number 8,100,400 are: 1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 175, 176, 200, 220, 263, 275, 280, 308, 350, 385, 400, 440, 526, 550, 560, 616, 700, 770, 880, 1052, 1100, 1232, 1315, 1400, 1540, 1841, 1925, 2104, 2200, 2630, 2800, 2893, 3080, 3682, 3850, 4208, 4400, 5260, 5786, 6160, 6575, 7364, 7700, 9205, 10520, 11572, 13150, 14465, 14728, 15400, 18410, 20251, 21040, 23144, 26300, 28930, 29456, 30800, 36820, 40502, 46025, 46288, 52600, 57860, 72325, 73640, 81004, 92050, 101255, 105200, 115720, 144650, 147280, 162008, 184100, 202510, 231440, 289300, 324016, 368200, 405020, 506275, 578600, 736400, 810040, 1012550, 1157200, 1620080, 2025100, 4050200, 8100400.
If you add them up, you will get the total of 24,355,584.