20019070

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 37267776

約数和(自身を除く): 17248706

約数列:

[1, 2, 5, 10, 41, 82, 157, 205, 311, 314, 410, 622, 785, 1555, 1570, 3110, 6437, 12751, 12874, 25502, 32185, 48827, 63755, 64370, 97654, 127510, 244135, 488270, 2001907, 4003814, 10009535, 20019070]

約数ペア:

[(1, 20019070), (2, 10009535), (5, 4003814), (10, 2001907), (41, 488270), (82, 244135), (157, 127510), (205, 97654), (311, 64370), (314, 63755), (410, 48827), (622, 32185), (785, 25502), (1555, 12874), (1570, 12751), (3110, 6437)]