199208840

素因数分解:

$2^3\times 5^1\times {\mathrm{4980221}}^1$

素因数の和:4980232

約数の個数: 16

約数和(自身を含む): 448219980

約数和(自身を除く): 249011140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4980221, 9960442, 19920884, 24901105, 39841768, 49802210, 99604420, 199208840]

約数ペア:

[(1, 199208840), (2, 99604420), (4, 49802210), (5, 39841768), (8, 24901105), (10, 19920884), (20, 9960442), (40, 4980221)]