31121285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 10876027

約数列:

[1, 5, 13, 47, 61, 65, 167, 235, 305, 611, 793, 835, 2171, 2867, 3055, 3965, 7849, 10187, 10855, 14335, 37271, 39245, 50935, 102037, 132431, 186355, 478789, 510185, 662155, 2393945, 6224257, 31121285]

約数ペア:

[(1, 31121285), (5, 6224257), (13, 2393945), (47, 662155), (61, 510185), (65, 478789), (167, 186355), (235, 132431), (305, 102037), (611, 50935), (793, 39245), (835, 37271), (2171, 14335), (2867, 10855), (3055, 10187), (3965, 7849)]