164501620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{2243}}^1$

素因数の和:2464

約数の個数: 48

約数和(自身を含む): 365682240

約数和(自身を除く): 201180620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 380, 386, 772, 965, 1930, 2243, 3667, 3860, 4486, 7334, 8972, 11215, 14668, 18335, 22430, 36670, 42617, 44860, 73340, 85234, 170468, 213085, 426170, 432899, 852340, 865798, 1731596, 2164495, 4328990, 8225081, 8657980, 16450162, 32900324, 41125405, 82250810, 164501620]

約数ペア:

[(1, 164501620), (2, 82250810), (4, 41125405), (5, 32900324), (10, 16450162), (19, 8657980), (20, 8225081), (38, 4328990), (76, 2164495), (95, 1731596), (190, 865798), (193, 852340), (380, 432899), (386, 426170), (772, 213085), (965, 170468), (1930, 85234), (2243, 73340), (3667, 44860), (3860, 42617), (4486, 36670), (7334, 22430), (8972, 18335), (11215, 14668)]