80980781

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 97474104

約数和(自身を除く): 16493323

約数列:

[1, 7, 41, 49, 173, 233, 287, 1211, 1631, 2009, 7093, 8477, 9553, 11417, 40309, 49651, 66871, 282163, 347557, 468097, 1652669, 1975141, 11568683, 80980781]

約数ペア:

[(1, 80980781), (7, 11568683), (41, 1975141), (49, 1652669), (173, 468097), (233, 347557), (287, 282163), (1211, 66871), (1631, 49651), (2009, 40309), (7093, 11417), (8477, 9553)]