639031636

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1747}}^1\times {\mathrm{4813}}^1$

素因数の和:6583

約数の個数: 24

約数和(自身を含む): 1178082080

約数和(自身を除く): 539050444

約数列:

[1, 2, 4, 19, 38, 76, 1747, 3494, 4813, 6988, 9626, 19252, 33193, 66386, 91447, 132772, 182894, 365788, 8408311, 16816622, 33633244, 159757909, 319515818, 639031636]

約数ペア:

[(1, 639031636), (2, 319515818), (4, 159757909), (19, 33633244), (38, 16816622), (76, 8408311), (1747, 365788), (3494, 182894), (4813, 132772), (6988, 91447), (9626, 66386), (19252, 33193)]