201505220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1439323}}^1$

素因数の和:1439339

約数の個数: 24

約数和(自身を含む): 483612864

約数和(自身を除く): 282107644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1439323, 2878646, 5757292, 7196615, 10075261, 14393230, 20150522, 28786460, 40301044, 50376305, 100752610, 201505220]

約数ペア:

[(1, 201505220), (2, 100752610), (4, 50376305), (5, 40301044), (7, 28786460), (10, 20150522), (14, 14393230), (20, 10075261), (28, 7196615), (35, 5757292), (70, 2878646), (140, 1439323)]