72157655

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 93519360

約数和(自身を除く): 21361705

約数列:

[1, 5, 29, 43, 71, 145, 163, 215, 355, 815, 1247, 2059, 3053, 4727, 6235, 7009, 10295, 11573, 15265, 23635, 35045, 57865, 88537, 203261, 335617, 442685, 497639, 1016305, 1678085, 2488195, 14431531, 72157655]

約数ペア:

[(1, 72157655), (5, 14431531), (29, 2488195), (43, 1678085), (71, 1016305), (145, 497639), (163, 442685), (215, 335617), (355, 203261), (815, 88537), (1247, 57865), (2059, 35045), (3053, 23635), (4727, 15265), (6235, 11573), (7009, 10295)]