The factors of the number 144,505,440 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1440, 1530, 1632, 2040, 2448, 2720, 3060, 4080, 4896, 5903, 6120, 8160, 11806, 12240, 17709, 23612, 24480, 29515, 35418, 47224, 53127, 59030, 70836, 88545, 94448, 100351, 106254, 118060, 141672, 177090, 188896, 200702, 212508, 236120, 265635, 283344, 301053, 354180, 401404, 425016, 472240, 501755, 531270, 566688, 602106, 708360, 802808, 850032, 903159, 944480, 1003510, 1062540, 1204212, 1416720, 1505265, 1605616, 1700064, 1806318, 2007020, 2125080, 2408424, 2833440, 3010530, 3211232, 3612636, 4014040, 4250160, 4515795, 4816848, 6021060, 7225272, 8028080, 8500320, 9031590, 9633696, 12042120, 14450544, 16056160, 18063180, 24084240, 28901088, 36126360, 48168480, 72252720, 144505440.
If you add them up, you will get the total of 522,220,608.