20185238440

素因数分解:

$2^3\times 5^1\times {\mathrm{2801}}^1\times {\mathrm{180161}}^1$

素因数の和:182973

約数の個数: 32

約数和(自身を含む): 45433253160

約数和(自身を除く): 25248014720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2801, 5602, 11204, 14005, 22408, 28010, 56020, 112040, 180161, 360322, 720644, 900805, 1441288, 1801610, 3603220, 7206440, 504630961, 1009261922, 2018523844, 2523154805, 4037047688, 5046309610, 10092619220, 20185238440]

約数ペア:

[(1, 20185238440), (2, 10092619220), (4, 5046309610), (5, 4037047688), (8, 2523154805), (10, 2018523844), (20, 1009261922), (40, 504630961), (2801, 7206440), (5602, 3603220), (11204, 1801610), (14005, 1441288), (22408, 900805), (28010, 720644), (56020, 360322), (112040, 180161)]