The factors of the number 120,151,136 are: 1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 37, 38, 49, 56, 74, 76, 98, 109, 112, 133, 148, 152, 196, 218, 224, 259, 266, 296, 304, 392, 436, 518, 532, 592, 608, 703, 763, 784, 872, 931, 1036, 1064, 1184, 1406, 1526, 1568, 1744, 1813, 1862, 2071, 2072, 2128, 2812, 3052, 3488, 3626, 3724, 4033, 4142, 4144, 4256, 4921, 5341, 5624, 6104, 7252, 7448, 8066, 8284, 8288, 9842, 10682, 11248, 12208, 14497, 14504, 14896, 16132, 16568, 19684, 21364, 22496, 24416, 28231, 28994, 29008, 29792, 32264, 33136, 34447, 39368, 42728, 56462, 57988, 58016, 64528, 66272, 68894, 76627, 78736, 85456, 101479, 112924, 115976, 129056, 137788, 153254, 157472, 170912, 197617, 202958, 225848, 231952, 275576, 306508, 395234, 405916, 451696, 463904, 536389, 551152, 613016, 790468, 811832, 903392, 1072778, 1102304, 1226032, 1580936, 1623664, 2145556, 2452064, 3161872, 3247328, 3754723, 4291112, 6323744, 7509446, 8582224, 15018892, 17164448, 30037784, 60075568, 120151136.
If you add them up, you will get the total of 300,207,600.