20186670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 64

約数和(自身を含む): 55996416

約数和(自身を除く): 35809746

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 97, 105, 194, 210, 291, 485, 582, 679, 970, 991, 1358, 1455, 1982, 2037, 2910, 2973, 3395, 4074, 4955, 5946, 6790, 6937, 9910, 10185, 13874, 14865, 20370, 20811, 29730, 34685, 41622, 69370, 96127, 104055, 192254, 208110, 288381, 480635, 576762, 672889, 961270, 1345778, 1441905, 2018667, 2883810, 3364445, 4037334, 6728890, 10093335, 20186670]

約数ペア:

[(1, 20186670), (2, 10093335), (3, 6728890), (5, 4037334), (6, 3364445), (7, 2883810), (10, 2018667), (14, 1441905), (15, 1345778), (21, 961270), (30, 672889), (35, 576762), (42, 480635), (70, 288381), (97, 208110), (105, 192254), (194, 104055), (210, 96127), (291, 69370), (485, 41622), (582, 34685), (679, 29730), (970, 20811), (991, 20370), (1358, 14865), (1455, 13874), (1982, 10185), (2037, 9910), (2910, 6937), (2973, 6790), (3395, 5946), (4074, 4955)]