138235640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181889}}^1$

素因数の和:181919

約数の個数: 32

約数和(自身を含む): 327402000

約数和(自身を除く): 189166360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 181889, 363778, 727556, 909445, 1455112, 1818890, 3455891, 3637780, 6911782, 7275560, 13823564, 17279455, 27647128, 34558910, 69117820, 138235640]

約数ペア:

[(1, 138235640), (2, 69117820), (4, 34558910), (5, 27647128), (8, 17279455), (10, 13823564), (19, 7275560), (20, 6911782), (38, 3637780), (40, 3455891), (76, 1818890), (95, 1455112), (152, 909445), (190, 727556), (380, 363778), (760, 181889)]