19910290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2437}}^1$

素因数の和:2506

約数の個数: 32

約数和(自身を含む): 38617920

約数和(自身を除く): 18707630

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 2437, 4085, 4874, 8170, 12185, 24370, 46303, 92606, 104791, 209582, 231515, 463030, 523955, 1047910, 1991029, 3982058, 9955145, 19910290]

約数ペア:

[(1, 19910290), (2, 9955145), (5, 3982058), (10, 1991029), (19, 1047910), (38, 523955), (43, 463030), (86, 231515), (95, 209582), (190, 104791), (215, 92606), (430, 46303), (817, 24370), (1634, 12185), (2437, 8170), (4085, 4874)]