The factors of the number 647,414,064 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 113, 132, 144, 176, 198, 226, 264, 339, 396, 452, 528, 678, 792, 904, 1017, 1243, 1356, 1584, 1808, 2034, 2486, 2712, 3617, 3729, 4068, 4972, 5424, 7234, 7458, 8136, 9944, 10851, 11187, 14468, 14916, 16272, 19888, 21702, 22374, 28936, 29832, 32553, 39787, 43404, 44748, 57872, 59664, 65106, 79574, 86808, 89496, 119361, 130212, 159148, 173616, 178992, 238722, 260424, 318296, 358083, 408721, 477444, 520848, 636592, 716166, 817442, 954888, 1226163, 1432332, 1634884, 1909776, 2452326, 2864664, 3269768, 3678489, 4495931, 4904652, 5729328, 6539536, 7356978, 8991862, 9809304, 13487793, 14713956, 17983724, 19618608, 26975586, 29427912, 35967448, 40463379, 53951172, 58855824, 71934896, 80926758, 107902344, 161853516, 215804688, 323707032, 647414064.
If you add them up, you will get the total of 1,994,617,872.