20120485

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4751}}^1$

素因数の和:4785

約数の個数: 24

約数和(自身を含む): 30336768

約数和(自身を除く): 10216283

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4751, 23755, 33257, 52261, 166285, 261305, 365827, 574871, 1829135, 2874355, 4024097, 20120485]

約数ペア:

[(1, 20120485), (5, 4024097), (7, 2874355), (11, 1829135), (35, 574871), (55, 365827), (77, 261305), (121, 166285), (385, 52261), (605, 33257), (847, 23755), (4235, 4751)]