The factors of the number 146,228,280 are: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 47, 55, 60, 66, 88, 94, 110, 120, 132, 141, 165, 188, 220, 235, 264, 282, 330, 376, 440, 470, 517, 564, 660, 705, 940, 1034, 1128, 1320, 1410, 1551, 1880, 2068, 2357, 2585, 2820, 3102, 4136, 4714, 5170, 5640, 6204, 7071, 7755, 9428, 10340, 11785, 12408, 14142, 15510, 18856, 20680, 23570, 25927, 28284, 31020, 35355, 47140, 51854, 56568, 62040, 70710, 77781, 94280, 103708, 110779, 129635, 141420, 155562, 207416, 221558, 259270, 282840, 311124, 332337, 388905, 443116, 518540, 553895, 622248, 664674, 777810, 886232, 1037080, 1107790, 1218569, 1329348, 1555620, 1661685, 2215580, 2437138, 2658696, 3111240, 3323370, 3655707, 4431160, 4874276, 6092845, 6646740, 7311414, 9748552, 12185690, 13293480, 14622828, 18278535, 24371380, 29245656, 36557070, 48742760, 73114140, 146228280.
If you add them up, you will get the total of 488,954,880.