257457508

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{75991}}^1$

素因数の和:76024

約数の個数: 36

約数和(自身を含む): 565988416

約数和(自身を除く): 308530908

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 75991, 151982, 303964, 531937, 835901, 1063874, 1671802, 2127748, 3343604, 5851307, 9194911, 11702614, 18389822, 23405228, 36779644, 64364377, 128728754, 257457508]

約数ペア:

[(1, 257457508), (2, 128728754), (4, 64364377), (7, 36779644), (11, 23405228), (14, 18389822), (22, 11702614), (28, 9194911), (44, 5851307), (77, 3343604), (121, 2127748), (154, 1671802), (242, 1063874), (308, 835901), (484, 531937), (847, 303964), (1694, 151982), (3388, 75991)]