20064905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18493}}^1$

素因数の和:18536

約数の個数: 16

約数和(自身を含む): 28406784

約数和(自身を除く): 8341879

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18493, 92465, 129451, 573283, 647255, 2866415, 4012981, 20064905]

約数ペア:

[(1, 20064905), (5, 4012981), (7, 2866415), (31, 647255), (35, 573283), (155, 129451), (217, 92465), (1085, 18493)]