20259020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23557}}^1$

素因数の和:23609

約数の個数: 24

約数和(自身を含む): 43535184

約数和(自身を除く): 23276164

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23557, 47114, 94228, 117785, 235570, 471140, 1012951, 2025902, 4051804, 5064755, 10129510, 20259020]

約数ペア:

[(1, 20259020), (2, 10129510), (4, 5064755), (5, 4051804), (10, 2025902), (20, 1012951), (43, 471140), (86, 235570), (172, 117785), (215, 94228), (430, 47114), (860, 23557)]