31891595

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 42535680

約数和(自身を除く): 10644085

約数列:

[1, 5, 19, 37, 43, 95, 185, 211, 215, 703, 817, 1055, 1591, 3515, 4009, 4085, 7807, 7955, 9073, 20045, 30229, 39035, 45365, 148333, 151145, 172387, 335701, 741665, 861935, 1678505, 6378319, 31891595]

約数ペア:

[(1, 31891595), (5, 6378319), (19, 1678505), (37, 861935), (43, 741665), (95, 335701), (185, 172387), (211, 151145), (215, 148333), (703, 45365), (817, 39035), (1055, 30229), (1591, 20045), (3515, 9073), (4009, 7955), (4085, 7807)]