248840360

素因数分解:

$2^3\times 5^1\times {\mathrm{6221009}}^1$

素因数の和:6221020

約数の個数: 16

約数和(自身を含む): 559890900

約数和(自身を除く): 311050540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6221009, 12442018, 24884036, 31105045, 49768072, 62210090, 124420180, 248840360]

約数ペア:

[(1, 248840360), (2, 124420180), (4, 62210090), (5, 49768072), (8, 31105045), (10, 24884036), (20, 12442018), (40, 6221009)]