20952260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1453}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 50808576

約数和(自身を除く): 29856316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 1453, 2060, 2884, 2906, 3605, 5812, 7210, 7265, 10171, 14420, 14530, 20342, 29060, 40684, 50855, 101710, 149659, 203420, 299318, 598636, 748295, 1047613, 1496590, 2095226, 2993180, 4190452, 5238065, 10476130, 20952260]

約数ペア:

[(1, 20952260), (2, 10476130), (4, 5238065), (5, 4190452), (7, 2993180), (10, 2095226), (14, 1496590), (20, 1047613), (28, 748295), (35, 598636), (70, 299318), (103, 203420), (140, 149659), (206, 101710), (412, 50855), (515, 40684), (721, 29060), (1030, 20342), (1442, 14530), (1453, 14420), (2060, 10171), (2884, 7265), (2906, 7210), (3605, 5812)]