The factors of the number 144,504,640 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1984, 2081, 2170, 2240, 2480, 3472, 4162, 4340, 4960, 6944, 8324, 8680, 9920, 10405, 13888, 14567, 16648, 17360, 20810, 29134, 33296, 34720, 41620, 58268, 64511, 66592, 69440, 72835, 83240, 116536, 129022, 133184, 145670, 166480, 233072, 258044, 291340, 322555, 332960, 451577, 466144, 516088, 582680, 645110, 665920, 903154, 932288, 1032176, 1165360, 1290220, 1806308, 2064352, 2257885, 2330720, 2580440, 3612616, 4128704, 4515770, 4661440, 5160880, 7225232, 9031540, 10321760, 14450464, 18063080, 20643520, 28900928, 36126160, 72252320, 144504640.
If you add them up, you will get the total of 406,139,904.