18688730

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{25601}}^1$

素因数の和:25681

約数の個数: 16

約数和(自身を含む): 34101864

約数和(自身を除く): 15413134

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 25601, 51202, 128005, 256010, 1868873, 3737746, 9344365, 18688730]

約数ペア:

[(1, 18688730), (2, 9344365), (5, 3737746), (10, 1868873), (73, 256010), (146, 128005), (365, 51202), (730, 25601)]