20550340

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1487}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 43247232

約数和(自身を除く): 22696892

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1487, 2764, 2974, 3455, 5948, 6910, 7435, 13820, 14870, 29740, 1027517, 2055034, 4110068, 5137585, 10275170, 20550340]

約数ペア:

[(1, 20550340), (2, 10275170), (4, 5137585), (5, 4110068), (10, 2055034), (20, 1027517), (691, 29740), (1382, 14870), (1487, 13820), (2764, 7435), (2974, 6910), (3455, 5948)]