12387020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6959}}^1$

素因数の和:7057

約数の個数: 24

約数和(自身を含む): 26308800

約数和(自身を除く): 13921780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 6959, 13918, 27836, 34795, 69590, 139180, 619351, 1238702, 2477404, 3096755, 6193510, 12387020]

約数ペア:

[(1, 12387020), (2, 6193510), (4, 3096755), (5, 2477404), (10, 1238702), (20, 619351), (89, 139180), (178, 69590), (356, 34795), (445, 27836), (890, 13918), (1780, 6959)]