The factors of the number 405,602,208 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 32, 33, 36, 44, 48, 54, 66, 72, 88, 96, 99, 108, 132, 144, 176, 198, 216, 264, 288, 297, 352, 396, 432, 528, 594, 792, 864, 1056, 1188, 1584, 2376, 3168, 4752, 9504, 42677, 85354, 128031, 170708, 256062, 341416, 384093, 469447, 512124, 682832, 768186, 938894, 1024248, 1152279, 1365664, 1408341, 1536372, 1877788, 2048496, 2304558, 2816682, 3072744, 3755576, 4096992, 4225023, 4609116, 5633364, 6145488, 7511152, 8450046, 9218232, 11266728, 12290976, 12675069, 15022304, 16900092, 18436464, 22533456, 25350138, 33800184, 36872928, 45066912, 50700276, 67600368, 101400552, 135200736, 202801104, 405602208.
If you add them up, you will get the total of 1,290,582,720.