31155620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1621}}^1$

素因数の和:1692

約数の個数: 36

約数和(自身を含む): 67647132

約数和(自身を除く): 36491512

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1621, 1922, 3242, 3844, 4805, 6484, 8105, 9610, 16210, 19220, 32420, 50251, 100502, 201004, 251255, 502510, 1005020, 1557781, 3115562, 6231124, 7788905, 15577810, 31155620]

約数ペア:

[(1, 31155620), (2, 15577810), (4, 7788905), (5, 6231124), (10, 3115562), (20, 1557781), (31, 1005020), (62, 502510), (124, 251255), (155, 201004), (310, 100502), (620, 50251), (961, 32420), (1621, 19220), (1922, 16210), (3242, 9610), (3844, 8105), (4805, 6484)]