18872305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{433}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 23748480

約数和(自身を除く): 4876175

約数列:

[1, 5, 23, 115, 379, 433, 1895, 2165, 8717, 9959, 43585, 49795, 164107, 820535, 3774461, 18872305]

約数ペア:

[(1, 18872305), (5, 3774461), (23, 820535), (115, 164107), (379, 49795), (433, 43585), (1895, 9959), (2165, 8717)]