257806801

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 322995200

約数和(自身を除く): 65188399

約数列:

[1, 7, 19, 43, 61, 133, 301, 427, 739, 817, 1159, 2623, 5173, 5719, 8113, 14041, 18361, 31777, 45079, 49837, 98287, 222439, 315553, 348859, 603763, 856501, 1938397, 4226341, 5995507, 13568779, 36829543, 257806801]

約数ペア:

[(1, 257806801), (7, 36829543), (19, 13568779), (43, 5995507), (61, 4226341), (133, 1938397), (301, 856501), (427, 603763), (739, 348859), (817, 315553), (1159, 222439), (2623, 98287), (5173, 49837), (5719, 45079), (8113, 31777), (14041, 18361)]