20006180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{541}}^1$

素因数の和:636

約数の個数: 36

約数和(自身を含む): 43092252

約数和(自身を除く): 23086072

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 541, 860, 1082, 1849, 2164, 2705, 3698, 5410, 7396, 9245, 10820, 18490, 23263, 36980, 46526, 93052, 116315, 232630, 465260, 1000309, 2000618, 4001236, 5001545, 10003090, 20006180]

約数ペア:

[(1, 20006180), (2, 10003090), (4, 5001545), (5, 4001236), (10, 2000618), (20, 1000309), (43, 465260), (86, 232630), (172, 116315), (215, 93052), (430, 46526), (541, 36980), (860, 23263), (1082, 18490), (1849, 10820), (2164, 9245), (2705, 7396), (3698, 5410)]