19187440

素因数分解:

$2^4\times 5^1\times {\mathrm{239843}}^1$

素因数の和:239856

約数の個数: 20

約数和(自身を含む): 44610984

約数和(自身を除く): 25423544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239843, 479686, 959372, 1199215, 1918744, 2398430, 3837488, 4796860, 9593720, 19187440]

約数ペア:

[(1, 19187440), (2, 9593720), (4, 4796860), (5, 3837488), (8, 2398430), (10, 1918744), (16, 1199215), (20, 959372), (40, 479686), (80, 239843)]