18316520

素因数分解:

$2^3\times 5^1\times {\mathrm{457913}}^1$

素因数の和:457924

約数の個数: 16

約数和(自身を含む): 41212260

約数和(自身を除く): 22895740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457913, 915826, 1831652, 2289565, 3663304, 4579130, 9158260, 18316520]

約数ペア:

[(1, 18316520), (2, 9158260), (4, 4579130), (5, 3663304), (8, 2289565), (10, 1831652), (20, 915826), (40, 457913)]