18720456

素因数分解:

$2^3\times 3^1\times {\mathrm{103}}^1\times {\mathrm{7573}}^1$

素因数の和:7685

約数の個数: 32

約数和(自身を含む): 47261760

約数和(自身を除く): 28541304

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 103, 206, 309, 412, 618, 824, 1236, 2472, 7573, 15146, 22719, 30292, 45438, 60584, 90876, 181752, 780019, 1560038, 2340057, 3120076, 4680114, 6240152, 9360228, 18720456]

約数ペア:

[(1, 18720456), (2, 9360228), (3, 6240152), (4, 4680114), (6, 3120076), (8, 2340057), (12, 1560038), (24, 780019), (103, 181752), (206, 90876), (309, 60584), (412, 45438), (618, 30292), (824, 22719), (1236, 15146), (2472, 7573)]