81344280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1217}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 244671840

約数和(自身を除く): 163327560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 557, 1114, 1217, 1671, 2228, 2434, 2785, 3342, 3651, 4456, 4868, 5570, 6085, 6684, 7302, 8355, 9736, 11140, 12170, 13368, 14604, 16710, 18255, 22280, 24340, 29208, 33420, 36510, 48680, 66840, 73020, 146040, 677869, 1355738, 2033607, 2711476, 3389345, 4067214, 5422952, 6778690, 8134428, 10168035, 13557380, 16268856, 20336070, 27114760, 40672140, 81344280]

約数ペア:

[(1, 81344280), (2, 40672140), (3, 27114760), (4, 20336070), (5, 16268856), (6, 13557380), (8, 10168035), (10, 8134428), (12, 6778690), (15, 5422952), (20, 4067214), (24, 3389345), (30, 2711476), (40, 2033607), (60, 1355738), (120, 677869), (557, 146040), (1114, 73020), (1217, 66840), (1671, 48680), (2228, 36510), (2434, 33420), (2785, 29208), (3342, 24340), (3651, 22280), (4456, 18255), (4868, 16710), (5570, 14604), (6085, 13368), (6684, 12170), (7302, 11140), (8355, 9736)]