The factors of the number 3,030,720 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 41, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 82, 84, 88, 96, 105, 110, 112, 120, 123, 132, 140, 154, 160, 164, 165, 168, 176, 192, 205, 210, 220, 224, 231, 240, 246, 264, 280, 287, 308, 320, 328, 330, 336, 352, 385, 410, 420, 440, 448, 451, 462, 480, 492, 528, 560, 574, 615, 616, 656, 660, 672, 704, 770, 820, 840, 861, 880, 902, 924, 960, 984, 1056, 1120, 1148, 1155, 1230, 1232, 1312, 1320, 1344, 1353, 1435, 1540, 1640, 1680, 1722, 1760, 1804, 1848, 1968, 2112, 2240, 2255, 2296, 2310, 2460, 2464, 2624, 2640, 2706, 2870, 3080, 3157, 3280, 3360, 3444, 3520, 3608, 3696, 3936, 4305, 4510, 4592, 4620, 4920, 4928, 5280, 5412, 5740, 6160, 6314, 6560, 6720, 6765, 6888, 7216, 7392, 7872, 8610, 9020, 9184, 9240, 9471, 9840, 10560, 10824, 11480, 12320, 12628, 13120, 13530, 13776, 14432, 14784, 15785, 17220, 18040, 18368, 18480, 18942, 19680, 21648, 22960, 24640, 25256, 27060, 27552, 28864, 31570, 34440, 36080, 36960, 37884, 39360, 43296, 45920, 47355, 50512, 54120, 55104, 63140, 68880, 72160, 73920, 75768, 86592, 91840, 94710, 101024, 108240, 126280, 137760, 144320, 151536, 189420, 202048, 216480, 252560, 275520, 303072, 378840, 432960, 505120, 606144, 757680, 1010240, 1515360, 3030720.
If you add them up, you will get the total of 12,289,536.