The factors of the number 1,142,400 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 25, 28, 30, 32, 34, 35, 40, 42, 48, 50, 51, 56, 60, 64, 68, 70, 75, 80, 84, 85, 96, 100, 102, 105, 112, 119, 120, 128, 136, 140, 150, 160, 168, 170, 175, 192, 200, 204, 210, 224, 238, 240, 255, 272, 280, 300, 320, 336, 340, 350, 357, 384, 400, 408, 420, 425, 448, 476, 480, 510, 525, 544, 560, 595, 600, 640, 672, 680, 700, 714, 800, 816, 840, 850, 896, 952, 960, 1020, 1050, 1088, 1120, 1190, 1200, 1275, 1344, 1360, 1400, 1428, 1600, 1632, 1680, 1700, 1785, 1904, 1920, 2040, 2100, 2176, 2240, 2380, 2400, 2550, 2688, 2720, 2800, 2856, 2975, 3200, 3264, 3360, 3400, 3570, 3808, 4080, 4200, 4480, 4760, 4800, 5100, 5440, 5600, 5712, 5950, 6528, 6720, 6800, 7140, 7616, 8160, 8400, 8925, 9520, 9600, 10200, 10880, 11200, 11424, 11900, 13440, 13600, 14280, 15232, 16320, 16800, 17850, 19040, 20400, 22400, 22848, 23800, 27200, 28560, 32640, 33600, 35700, 38080, 40800, 45696, 47600, 54400, 57120, 67200, 71400, 76160, 81600, 95200, 114240, 142800, 163200, 190400, 228480, 285600, 380800, 571200, 1142400.
If you add them up, you will get the total of 4,553,280.