2680457840

素因数分解:

$2^4\times 5^1\times {\mathrm{33505723}}^1$

素因数の和:33505736

約数の個数: 20

約数和(自身を含む): 6232064664

約数和(自身を除く): 3551606824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 33505723, 67011446, 134022892, 167528615, 268045784, 335057230, 536091568, 670114460, 1340228920, 2680457840]

約数ペア:

[(1, 2680457840), (2, 1340228920), (4, 670114460), (5, 536091568), (8, 335057230), (10, 268045784), (16, 167528615), (20, 134022892), (40, 67011446), (80, 33505723)]