20064955

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1949}}^1$

素因数の和:2054

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 5207045

約数列:

[1, 5, 29, 71, 145, 355, 1949, 2059, 9745, 10295, 56521, 138379, 282605, 691895, 4012991, 20064955]

約数ペア:

[(1, 20064955), (5, 4012991), (29, 691895), (71, 282605), (145, 138379), (355, 56521), (1949, 10295), (2059, 9745)]