12128020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{9941}}^1$

素因数の和:10011

約数の個数: 24

約数和(自身を含む): 25888968

約数和(自身を除く): 13760948

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 9941, 19882, 39764, 49705, 99410, 198820, 606401, 1212802, 2425604, 3032005, 6064010, 12128020]

約数ペア:

[(1, 12128020), (2, 6064010), (4, 3032005), (5, 2425604), (10, 1212802), (20, 606401), (61, 198820), (122, 99410), (244, 49705), (305, 39764), (610, 19882), (1220, 9941)]