18668401640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1259}}^1\times {\mathrm{52957}}^1$

素因数の和:54234

約数の個数: 64

約数和(自身を含む): 48043497600

約数和(自身を除く): 29375095960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1259, 2518, 5036, 6295, 8813, 10072, 12590, 17626, 25180, 35252, 44065, 50360, 52957, 70504, 88130, 105914, 176260, 211828, 264785, 352520, 370699, 423656, 529570, 741398, 1059140, 1482796, 1853495, 2118280, 2965592, 3706990, 7413980, 14827960, 66672863, 133345726, 266691452, 333364315, 466710041, 533382904, 666728630, 933420082, 1333457260, 1866840164, 2333550205, 2666914520, 3733680328, 4667100410, 9334200820, 18668401640]

約数ペア:

[(1, 18668401640), (2, 9334200820), (4, 4667100410), (5, 3733680328), (7, 2666914520), (8, 2333550205), (10, 1866840164), (14, 1333457260), (20, 933420082), (28, 666728630), (35, 533382904), (40, 466710041), (56, 333364315), (70, 266691452), (140, 133345726), (280, 66672863), (1259, 14827960), (2518, 7413980), (5036, 3706990), (6295, 2965592), (8813, 2118280), (10072, 1853495), (12590, 1482796), (17626, 1059140), (25180, 741398), (35252, 529570), (44065, 423656), (50360, 370699), (52957, 352520), (70504, 264785), (88130, 211828), (105914, 176260)]