20019810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4871}}^1$

素因数の和:5018

約数の個数: 32

約数和(自身を含む): 48408192

約数和(自身を除く): 28388382

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 4871, 9742, 14613, 24355, 29226, 48710, 73065, 146130, 667327, 1334654, 2001981, 3336635, 4003962, 6673270, 10009905, 20019810]

約数ペア:

[(1, 20019810), (2, 10009905), (3, 6673270), (5, 4003962), (6, 3336635), (10, 2001981), (15, 1334654), (30, 667327), (137, 146130), (274, 73065), (411, 48710), (685, 29226), (822, 24355), (1370, 14613), (2055, 9742), (4110, 4871)]