31391065

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 40037760

約数和(自身を除く): 8646695

約数列:

[1, 5, 31, 47, 139, 155, 235, 695, 961, 1457, 4309, 4805, 6533, 7285, 21545, 32665, 45167, 133579, 202523, 225835, 667895, 1012615, 6278213, 31391065]

約数ペア:

[(1, 31391065), (5, 6278213), (31, 1012615), (47, 667895), (139, 225835), (155, 202523), (235, 133579), (695, 45167), (961, 32665), (1457, 21545), (4309, 7285), (4805, 6533)]