18920510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3037}}^1$

素因数の和:3140

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 20451970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3037, 3115, 6074, 6230, 15185, 21259, 30370, 42518, 106295, 212590, 270293, 540586, 1351465, 1892051, 2702930, 3784102, 9460255, 18920510]

約数ペア:

[(1, 18920510), (2, 9460255), (5, 3784102), (7, 2702930), (10, 1892051), (14, 1351465), (35, 540586), (70, 270293), (89, 212590), (178, 106295), (445, 42518), (623, 30370), (890, 21259), (1246, 15185), (3037, 6230), (3115, 6074)]