27949780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12821}}^1$

素因数の和:12939

約数の個数: 24

約数和(自身を含む): 59237640

約数和(自身を除く): 31287860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 12821, 25642, 51284, 64105, 128210, 256420, 1397489, 2794978, 5589956, 6987445, 13974890, 27949780]

約数ペア:

[(1, 27949780), (2, 13974890), (4, 6987445), (5, 5589956), (10, 2794978), (20, 1397489), (109, 256420), (218, 128210), (436, 64105), (545, 51284), (1090, 25642), (2180, 12821)]