20180290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11941}}^1$

素因数の和:11974

約数の個数: 24

約数和(自身を含む): 39336948

約数和(自身を除く): 19156658

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11941, 23882, 59705, 119410, 155233, 310466, 776165, 1552330, 2018029, 4036058, 10090145, 20180290]

約数ペア:

[(1, 20180290), (2, 10090145), (5, 4036058), (10, 2018029), (13, 1552330), (26, 776165), (65, 310466), (130, 155233), (169, 119410), (338, 59705), (845, 23882), (1690, 11941)]