20665740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{344429}}^1$

素因数の和:344441

約数の個数: 24

約数和(自身を含む): 57864240

約数和(自身を除く): 37198500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 344429, 688858, 1033287, 1377716, 1722145, 2066574, 3444290, 4133148, 5166435, 6888580, 10332870, 20665740]

約数ペア:

[(1, 20665740), (2, 10332870), (3, 6888580), (4, 5166435), (5, 4133148), (6, 3444290), (10, 2066574), (12, 1722145), (15, 1377716), (20, 1033287), (30, 688858), (60, 344429)]