The factors of the number 3,561,600 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 53, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 106, 112, 120, 128, 140, 150, 159, 160, 168, 175, 192, 200, 210, 212, 224, 240, 265, 280, 300, 318, 320, 336, 350, 371, 384, 400, 420, 424, 448, 480, 525, 530, 560, 600, 636, 640, 672, 700, 742, 795, 800, 840, 848, 896, 960, 1050, 1060, 1113, 1120, 1200, 1272, 1325, 1344, 1400, 1484, 1590, 1600, 1680, 1696, 1855, 1920, 2100, 2120, 2226, 2240, 2400, 2544, 2650, 2688, 2800, 2968, 3180, 3200, 3360, 3392, 3710, 3975, 4200, 4240, 4452, 4480, 4800, 5088, 5300, 5565, 5600, 5936, 6360, 6720, 6784, 7420, 7950, 8400, 8480, 8904, 9275, 9600, 10176, 10600, 11130, 11200, 11872, 12720, 13440, 14840, 15900, 16800, 16960, 17808, 18550, 20352, 21200, 22260, 22400, 23744, 25440, 27825, 29680, 31800, 33600, 33920, 35616, 37100, 42400, 44520, 47488, 50880, 55650, 59360, 63600, 67200, 71232, 74200, 84800, 89040, 101760, 111300, 118720, 127200, 142464, 148400, 169600, 178080, 222600, 237440, 254400, 296800, 356160, 445200, 508800, 593600, 712320, 890400, 1187200, 1780800, 3561600.
If you add them up, you will get the total of 13,659,840.