The factors of the number 215,135,328 are: 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 76, 79, 96, 114, 152, 158, 228, 237, 304, 316, 456, 474, 608, 632, 912, 948, 1264, 1493, 1501, 1824, 1896, 2528, 2986, 3002, 3792, 4479, 4503, 5972, 6004, 7584, 8958, 9006, 11944, 12008, 17916, 18012, 23888, 24016, 28367, 35832, 36024, 47776, 48032, 56734, 71664, 72048, 85101, 113468, 117947, 143328, 144096, 170202, 226936, 235894, 340404, 353841, 453872, 471788, 680808, 707682, 907744, 943576, 1361616, 1415364, 1887152, 2240993, 2723232, 2830728, 3774304, 4481986, 5661456, 6722979, 8963972, 11322912, 13445958, 17927944, 26891916, 35855888, 53783832, 71711776, 107567664, 215135328.
If you add them up, you will get the total of 215,135,715. Now subtract 215,135,328 to get 387,245,472