The factors of the number 321,130,020 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 645, 817, 860, 1140, 1290, 1634, 2451, 2580, 3268, 4085, 4902, 6551, 8170, 9804, 12255, 13102, 16340, 19653, 24510, 26204, 32755, 39306, 49020, 65510, 78612, 98265, 124469, 131020, 196530, 248938, 281693, 373407, 393060, 497876, 563386, 622345, 746814, 845079, 1126772, 1244690, 1408465, 1493628, 1690158, 1867035, 2489380, 2816930, 3380316, 3734070, 4225395, 5352167, 5633860, 7468140, 8450790, 10704334, 16056501, 16901580, 21408668, 26760835, 32113002, 53521670, 64226004, 80282505, 107043340, 160565010, 321130020.
If you add them up, you will get the total of 321,130,667. Now subtract 321,130,020 to get 647,517,660