6781791440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1971451}}^1$

素因数の和:1971507

約数の個数: 40

約数和(自身を含む): 16134363168

約数和(自身を除く): 9352571728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 1971451, 3942902, 7885804, 9857255, 15771608, 19714510, 31543216, 39429020, 78858040, 84772393, 157716080, 169544786, 339089572, 423861965, 678179144, 847723930, 1356358288, 1695447860, 3390895720, 6781791440]

約数ペア:

[(1, 6781791440), (2, 3390895720), (4, 1695447860), (5, 1356358288), (8, 847723930), (10, 678179144), (16, 423861965), (20, 339089572), (40, 169544786), (43, 157716080), (80, 84772393), (86, 78858040), (172, 39429020), (215, 31543216), (344, 19714510), (430, 15771608), (688, 9857255), (860, 7885804), (1720, 3942902), (3440, 1971451)]