20180188780

素因数分解:

$2^2\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{695389}}^1$

素因数の和:696849

約数の個数: 24

約数和(自身を含む): 42407663760

約数和(自身を除く): 22227474980

約数列:

[1, 2, 4, 5, 10, 20, 1451, 2902, 5804, 7255, 14510, 29020, 695389, 1390778, 2781556, 3476945, 6953890, 13907780, 1009009439, 2018018878, 4036037756, 5045047195, 10090094390, 20180188780]

約数ペア:

[(1, 20180188780), (2, 10090094390), (4, 5045047195), (5, 4036037756), (10, 2018018878), (20, 1009009439), (1451, 13907780), (2902, 6953890), (5804, 3476945), (7255, 2781556), (14510, 1390778), (29020, 695389)]