139905080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499661}}^1$

素因数の和:499679

約数の個数: 32

約数和(自身を含む): 359756640

約数和(自身を除く): 219851560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499661, 999322, 1998644, 2498305, 3497627, 3997288, 4996610, 6995254, 9993220, 13990508, 17488135, 19986440, 27981016, 34976270, 69952540, 139905080]

約数ペア:

[(1, 139905080), (2, 69952540), (4, 34976270), (5, 27981016), (7, 19986440), (8, 17488135), (10, 13990508), (14, 9993220), (20, 6995254), (28, 4996610), (35, 3997288), (40, 3497627), (56, 2498305), (70, 1998644), (140, 999322), (280, 499661)]