80857028

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67157}}^1$

素因数の和:67211

約数の個数: 24

約数和(自身を含む): 165477312

約数和(自身を除く): 84620284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67157, 134314, 268628, 470099, 940198, 1880396, 2887751, 5775502, 11551004, 20214257, 40428514, 80857028]

約数ペア:

[(1, 80857028), (2, 40428514), (4, 20214257), (7, 11551004), (14, 5775502), (28, 2887751), (43, 1880396), (86, 940198), (172, 470099), (301, 268628), (602, 134314), (1204, 67157)]