The factors of the number 403,455,120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 103, 114, 120, 152, 190, 206, 228, 240, 285, 304, 309, 380, 412, 456, 515, 570, 618, 760, 824, 859, 912, 1030, 1140, 1236, 1520, 1545, 1648, 1718, 1957, 2060, 2280, 2472, 2577, 3090, 3436, 3914, 4120, 4295, 4560, 4944, 5154, 5871, 6180, 6872, 7828, 8240, 8590, 9785, 10308, 11742, 12360, 12885, 13744, 15656, 16321, 17180, 19570, 20616, 23484, 24720, 25770, 29355, 31312, 32642, 34360, 39140, 41232, 46968, 48963, 51540, 58710, 65284, 68720, 78280, 81605, 88477, 93936, 97926, 103080, 117420, 130568, 156560, 163210, 176954, 195852, 206160, 234840, 244815, 261136, 265431, 326420, 353908, 391704, 442385, 469680, 489630, 530862, 652840, 707816, 783408, 884770, 979260, 1061724, 1305680, 1327155, 1415632, 1681063, 1769540, 1958520, 2123448, 2654310, 3362126, 3539080, 3917040, 4246896, 5043189, 5308620, 6724252, 7078160, 8405315, 10086378, 10617240, 13448504, 16810630, 20172756, 21234480, 25215945, 26897008, 33621260, 40345512, 50431890, 67242520, 80691024, 100863780, 134485040, 201727560, 403455120.
If you add them up, you will get the total of 1,330,867,200.