18388740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{306479}}^1$

素因数の和:306491

約数の個数: 24

約数和(自身を含む): 51488640

約数和(自身を除く): 33099900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 306479, 612958, 919437, 1225916, 1532395, 1838874, 3064790, 3677748, 4597185, 6129580, 9194370, 18388740]

約数ペア:

[(1, 18388740), (2, 9194370), (3, 6129580), (4, 4597185), (5, 3677748), (6, 3064790), (10, 1838874), (12, 1532395), (15, 1225916), (20, 919437), (30, 612958), (60, 306479)]