20605806145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{439}}^1\times {\mathrm{947}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 25948200960

約数和(自身を除く): 5342394815

約数列:

[1, 5, 23, 115, 431, 439, 947, 2155, 2195, 4735, 9913, 10097, 21781, 49565, 50485, 108905, 189209, 408157, 415733, 946045, 2040785, 2078665, 4351807, 9387611, 9561859, 21759035, 46938055, 47809295, 179180923, 895904615, 4121161229, 20605806145]

約数ペア:

[(1, 20605806145), (5, 4121161229), (23, 895904615), (115, 179180923), (431, 47809295), (439, 46938055), (947, 21759035), (2155, 9561859), (2195, 9387611), (4735, 4351807), (9913, 2078665), (10097, 2040785), (21781, 946045), (49565, 415733), (50485, 408157), (108905, 189209)]