31830040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72341}}^1$

素因数の和:72363

約数の個数: 32

約数和(自身を含む): 78129360

約数和(自身を除く): 46299320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72341, 144682, 289364, 361705, 578728, 723410, 795751, 1446820, 1591502, 2893640, 3183004, 3978755, 6366008, 7957510, 15915020, 31830040]

約数ペア:

[(1, 31830040), (2, 15915020), (4, 7957510), (5, 6366008), (8, 3978755), (10, 3183004), (11, 2893640), (20, 1591502), (22, 1446820), (40, 795751), (44, 723410), (55, 578728), (88, 361705), (110, 289364), (220, 144682), (440, 72341)]