31922440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72551}}^1$

素因数の和:72573

約数の個数: 32

約数和(自身を含む): 78356160

約数和(自身を除く): 46433720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72551, 145102, 290204, 362755, 580408, 725510, 798061, 1451020, 1596122, 2902040, 3192244, 3990305, 6384488, 7980610, 15961220, 31922440]

約数ペア:

[(1, 31922440), (2, 15961220), (4, 7980610), (5, 6384488), (8, 3990305), (10, 3192244), (11, 2902040), (20, 1596122), (22, 1451020), (40, 798061), (44, 725510), (55, 580408), (88, 362755), (110, 290204), (220, 145102), (440, 72551)]