81805980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1363433}}^1$

素因数の和:1363445

約数の個数: 24

約数和(自身を含む): 229056912

約数和(自身を除く): 147250932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1363433, 2726866, 4090299, 5453732, 6817165, 8180598, 13634330, 16361196, 20451495, 27268660, 40902990, 81805980]

約数ペア:

[(1, 81805980), (2, 40902990), (3, 27268660), (4, 20451495), (5, 16361196), (6, 13634330), (10, 8180598), (12, 6817165), (15, 5453732), (20, 4090299), (30, 2726866), (60, 1363433)]