85780400

素因数分解:

$2^4\times 5^2\times {\mathrm{214451}}^1$

素因数の和:214469

約数の個数: 30

約数和(自身を含む): 206088372

約数和(自身を除く): 120307972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 214451, 428902, 857804, 1072255, 1715608, 2144510, 3431216, 4289020, 5361275, 8578040, 10722550, 17156080, 21445100, 42890200, 85780400]

約数ペア:

[(1, 85780400), (2, 42890200), (4, 21445100), (5, 17156080), (8, 10722550), (10, 8578040), (16, 5361275), (20, 4289020), (25, 3431216), (40, 2144510), (50, 1715608), (80, 1072255), (100, 857804), (200, 428902), (400, 214451)]