18972080

素因数分解:

$2^4\times 5^1\times {\mathrm{237151}}^1$

素因数の和:237164

約数の個数: 20

約数和(自身を含む): 44110272

約数和(自身を除く): 25138192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237151, 474302, 948604, 1185755, 1897208, 2371510, 3794416, 4743020, 9486040, 18972080]

約数ペア:

[(1, 18972080), (2, 9486040), (4, 4743020), (5, 3794416), (8, 2371510), (10, 1897208), (16, 1185755), (20, 948604), (40, 474302), (80, 237151)]