18723080

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2099}}^1$

素因数の和:2333

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 23612920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2099, 2230, 4198, 4460, 8396, 8920, 10495, 16792, 20990, 41980, 83960, 468077, 936154, 1872308, 2340385, 3744616, 4680770, 9361540, 18723080]

約数ペア:

[(1, 18723080), (2, 9361540), (4, 4680770), (5, 3744616), (8, 2340385), (10, 1872308), (20, 936154), (40, 468077), (223, 83960), (446, 41980), (892, 20990), (1115, 16792), (1784, 10495), (2099, 8920), (2230, 8396), (4198, 4460)]