The factors of the number 124,056,576 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 432, 448, 504, 512, 576, 641, 672, 756, 768, 864, 896, 1008, 1024, 1152, 1282, 1344, 1512, 1536, 1728, 1792, 1923, 2016, 2304, 2564, 2688, 3024, 3072, 3456, 3584, 3846, 4032, 4487, 4608, 5128, 5376, 5769, 6048, 6912, 7168, 7692, 8064, 8974, 9216, 10256, 10752, 11538, 12096, 13461, 13824, 15384, 16128, 17307, 17948, 20512, 21504, 23076, 24192, 26922, 27648, 30768, 32256, 34614, 35896, 40383, 41024, 46152, 48384, 53844, 61536, 64512, 69228, 71792, 80766, 82048, 92304, 96768, 107688, 121149, 123072, 138456, 143584, 161532, 164096, 184608, 193536, 215376, 242298, 246144, 276912, 287168, 323064, 328192, 369216, 430752, 484596, 492288, 553824, 574336, 646128, 656384, 738432, 861504, 969192, 984576, 1107648, 1148672, 1292256, 1476864, 1723008, 1938384, 1969152, 2215296, 2297344, 2584512, 2953728, 3446016, 3876768, 4430592, 4594688, 5169024, 5907456, 6892032, 7753536, 8861184, 10338048, 13784064, 15507072, 17722368, 20676096, 31014144, 41352192, 62028288, 124056576.
If you add them up, you will get the total of 420,535,680.