213577840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381389}}^1$

素因数の和:381409

約数の個数: 40

約数和(自身を含む): 567508320

約数和(自身を除く): 353930480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381389, 762778, 1525556, 1906945, 2669723, 3051112, 3813890, 5339446, 6102224, 7627780, 10678892, 13348615, 15255560, 21357784, 26697230, 30511120, 42715568, 53394460, 106788920, 213577840]

約数ペア:

[(1, 213577840), (2, 106788920), (4, 53394460), (5, 42715568), (7, 30511120), (8, 26697230), (10, 21357784), (14, 15255560), (16, 13348615), (20, 10678892), (28, 7627780), (35, 6102224), (40, 5339446), (56, 3813890), (70, 3051112), (80, 2669723), (112, 1906945), (140, 1525556), (280, 762778), (560, 381389)]