18300020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9433}}^1$

素因数の和:9539

約数の個数: 24

約数和(自身を含む): 38830344

約数和(自身を除く): 20530324

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9433, 18866, 37732, 47165, 94330, 188660, 915001, 1830002, 3660004, 4575005, 9150010, 18300020]

約数ペア:

[(1, 18300020), (2, 9150010), (4, 4575005), (5, 3660004), (10, 1830002), (20, 915001), (97, 188660), (194, 94330), (388, 47165), (485, 37732), (970, 18866), (1940, 9433)]