20784433940

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1201}}^1\times {\mathrm{1877}}^1$

素因数の和:3548

約数の個数: 48

約数和(自身を含む): 43801735824

約数和(自身を除く): 23017301884

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1201, 1844, 1877, 2305, 2402, 3754, 4610, 4804, 6005, 7508, 9220, 9385, 12010, 18770, 24020, 37540, 553661, 865297, 1107322, 1730594, 2214644, 2254277, 2768305, 3461188, 4326485, 4508554, 5536610, 8652970, 9017108, 11073220, 11271385, 17305940, 22542770, 45085540, 1039221697, 2078443394, 4156886788, 5196108485, 10392216970, 20784433940]

約数ペア:

[(1, 20784433940), (2, 10392216970), (4, 5196108485), (5, 4156886788), (10, 2078443394), (20, 1039221697), (461, 45085540), (922, 22542770), (1201, 17305940), (1844, 11271385), (1877, 11073220), (2305, 9017108), (2402, 8652970), (3754, 5536610), (4610, 4508554), (4804, 4326485), (6005, 3461188), (7508, 2768305), (9220, 2254277), (9385, 2214644), (12010, 1730594), (18770, 1107322), (24020, 865297), (37540, 553661)]