80442160

素因数分解:

$2^4\times 5^1\times {\mathrm{1005527}}^1$

素因数の和:1005540

約数の個数: 20

約数和(自身を含む): 187028208

約数和(自身を除く): 106586048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1005527, 2011054, 4022108, 5027635, 8044216, 10055270, 16088432, 20110540, 40221080, 80442160]

約数ペア:

[(1, 80442160), (2, 40221080), (4, 20110540), (5, 16088432), (8, 10055270), (10, 8044216), (16, 5027635), (20, 4022108), (40, 2011054), (80, 1005527)]