18020615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{449}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 22680000

約数和(自身を除く): 4659385

約数列:

[1, 5, 23, 115, 349, 449, 1745, 2245, 8027, 10327, 40135, 51635, 156701, 783505, 3604123, 18020615]

約数ペア:

[(1, 18020615), (5, 3604123), (23, 783505), (115, 156701), (349, 51635), (449, 40135), (1745, 10327), (2245, 8027)]