20795020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9539}}^1$

素因数の和:9657

約数の個数: 24

約数和(自身を含む): 44074800

約数和(自身を除く): 23279780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9539, 19078, 38156, 47695, 95390, 190780, 1039751, 2079502, 4159004, 5198755, 10397510, 20795020]

約数ペア:

[(1, 20795020), (2, 10397510), (4, 5198755), (5, 4159004), (10, 2079502), (20, 1039751), (109, 190780), (218, 95390), (436, 47695), (545, 38156), (1090, 19078), (2180, 9539)]