79913780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{2161}}^1$

素因数の和:2256

約数の個数: 36

約数和(自身を含む): 171891972

約数和(自身を除く): 91978192

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 2161, 3698, 4322, 7396, 8644, 9245, 10805, 18490, 21610, 36980, 43220, 92923, 185846, 371692, 464615, 929230, 1858460, 3995689, 7991378, 15982756, 19978445, 39956890, 79913780]

約数ペア:

[(1, 79913780), (2, 39956890), (4, 19978445), (5, 15982756), (10, 7991378), (20, 3995689), (43, 1858460), (86, 929230), (172, 464615), (215, 371692), (430, 185846), (860, 92923), (1849, 43220), (2161, 36980), (3698, 21610), (4322, 18490), (7396, 10805), (8644, 9245)]