20529460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146639}}^1$

素因数の和:146655

約数の個数: 24

約数和(自身を含む): 49271040

約数和(自身を除く): 28741580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146639, 293278, 586556, 733195, 1026473, 1466390, 2052946, 2932780, 4105892, 5132365, 10264730, 20529460]

約数ペア:

[(1, 20529460), (2, 10264730), (4, 5132365), (5, 4105892), (7, 2932780), (10, 2052946), (14, 1466390), (20, 1026473), (28, 733195), (35, 586556), (70, 293278), (140, 146639)]