64120100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 154115136

約数和(自身を除く): 89995036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 220, 275, 284, 355, 550, 710, 781, 821, 1100, 1420, 1562, 1642, 1775, 3124, 3284, 3550, 3905, 4105, 7100, 7810, 8210, 9031, 15620, 16420, 18062, 19525, 20525, 36124, 39050, 41050, 45155, 58291, 78100, 82100, 90310, 116582, 180620, 225775, 233164, 291455, 451550, 582910, 641201, 903100, 1165820, 1282402, 1457275, 2564804, 2914550, 3206005, 5829100, 6412010, 12824020, 16030025, 32060050, 64120100]

約数ペア:

[(1, 64120100), (2, 32060050), (4, 16030025), (5, 12824020), (10, 6412010), (11, 5829100), (20, 3206005), (22, 2914550), (25, 2564804), (44, 1457275), (50, 1282402), (55, 1165820), (71, 903100), (100, 641201), (110, 582910), (142, 451550), (220, 291455), (275, 233164), (284, 225775), (355, 180620), (550, 116582), (710, 90310), (781, 82100), (821, 78100), (1100, 58291), (1420, 45155), (1562, 41050), (1642, 39050), (1775, 36124), (3124, 20525), (3284, 19525), (3550, 18062), (3905, 16420), (4105, 15620), (7100, 9031), (7810, 8210)]