209064385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^2\times {\mathrm{661}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 270469368

約数和(自身を除く): 61404983

約数列:

[1, 5, 17, 61, 85, 305, 661, 1037, 3305, 3721, 5185, 11237, 18605, 40321, 56185, 63257, 201605, 316285, 685457, 2459581, 3427285, 12297905, 41812877, 209064385]

約数ペア:

[(1, 209064385), (5, 41812877), (17, 12297905), (61, 3427285), (85, 2459581), (305, 685457), (661, 316285), (1037, 201605), (3305, 63257), (3721, 56185), (5185, 40321), (11237, 18605)]