18391540

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4051}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 38801952

約数和(自身を除く): 20410412

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4051, 4540, 8102, 16204, 20255, 40510, 81020, 919577, 1839154, 3678308, 4597885, 9195770, 18391540]

約数ペア:

[(1, 18391540), (2, 9195770), (4, 4597885), (5, 3678308), (10, 1839154), (20, 919577), (227, 81020), (454, 40510), (908, 20255), (1135, 16204), (2270, 8102), (4051, 4540)]