The factors of the number 471,240 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 22, 24, 28, 30, 33, 34, 35, 36, 40, 42, 44, 45, 51, 55, 56, 60, 63, 66, 68, 70, 72, 77, 84, 85, 88, 90, 99, 102, 105, 110, 119, 120, 126, 132, 136, 140, 153, 154, 165, 168, 170, 180, 187, 198, 204, 210, 220, 231, 238, 252, 255, 264, 280, 306, 308, 315, 330, 340, 357, 360, 374, 385, 396, 408, 420, 440, 462, 476, 495, 504, 510, 561, 595, 612, 616, 630, 660, 680, 693, 714, 748, 765, 770, 792, 840, 924, 935, 952, 990, 1020, 1071, 1122, 1155, 1190, 1224, 1260, 1309, 1320, 1386, 1428, 1496, 1530, 1540, 1683, 1785, 1848, 1870, 1980, 2040, 2142, 2244, 2310, 2380, 2520, 2618, 2772, 2805, 2856, 3060, 3080, 3366, 3465, 3570, 3740, 3927, 3960, 4284, 4488, 4620, 4760, 5236, 5355, 5544, 5610, 6120, 6545, 6732, 6930, 7140, 7480, 7854, 8415, 8568, 9240, 10472, 10710, 11220, 11781, 13090, 13464, 13860, 14280, 15708, 16830, 19635, 21420, 22440, 23562, 26180, 27720, 31416, 33660, 39270, 42840, 47124, 52360, 58905, 67320, 78540, 94248, 117810, 157080, 235620, 471240.
If you add them up, you will get the total of 471,241. Now subtract 471,240 to get 1,550,520