The factors of the number 491,400 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 25, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 50, 52, 54, 56, 60, 63, 65, 70, 72, 75, 78, 84, 90, 91, 100, 104, 105, 108, 117, 120, 126, 130, 135, 140, 150, 156, 168, 175, 180, 182, 189, 195, 200, 210, 216, 225, 234, 252, 260, 270, 273, 280, 300, 312, 315, 325, 350, 351, 360, 364, 378, 390, 420, 450, 455, 468, 504, 520, 525, 540, 546, 585, 600, 630, 650, 675, 700, 702, 728, 756, 780, 819, 840, 900, 910, 936, 945, 975, 1050, 1080, 1092, 1170, 1260, 1300, 1350, 1365, 1400, 1404, 1512, 1560, 1575, 1638, 1755, 1800, 1820, 1890, 1950, 2100, 2184, 2275, 2340, 2457, 2520, 2600, 2700, 2730, 2808, 2925, 3150, 3276, 3510, 3640, 3780, 3900, 4095, 4200, 4550, 4680, 4725, 4914, 5400, 5460, 5850, 6300, 6552, 6825, 7020, 7560, 7800, 8190, 8775, 9100, 9450, 9828, 10920, 11700, 12285, 12600, 13650, 14040, 16380, 17550, 18200, 18900, 19656, 20475, 23400, 24570, 27300, 32760, 35100, 37800, 40950, 49140, 54600, 61425, 70200, 81900, 98280, 122850, 163800, 245700, 491400.
If you add them up, you will get the total of 491,401. Now subtract 491,400 to get 1,591,800