9990820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71363}}^1$

素因数の和:71379

約数の個数: 24

約数和(自身を含む): 23978304

約数和(自身を除く): 13987484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 71363, 142726, 285452, 356815, 499541, 713630, 999082, 1427260, 1998164, 2497705, 4995410, 9990820]

約数ペア:

[(1, 9990820), (2, 4995410), (4, 2497705), (5, 1998164), (7, 1427260), (10, 999082), (14, 713630), (20, 499541), (28, 356815), (35, 285452), (70, 142726), (140, 71363)]