264119980

素因数分解:

$2^2\times 5^1\times {\mathrm{1889}}^1\times {\mathrm{6991}}^1$

素因数の和:8889

約数の個数: 24

約数和(自身を含む): 555024960

約数和(自身を除く): 290904980

約数列:

[1, 2, 4, 5, 10, 20, 1889, 3778, 6991, 7556, 9445, 13982, 18890, 27964, 34955, 37780, 69910, 139820, 13205999, 26411998, 52823996, 66029995, 132059990, 264119980]

約数ペア:

[(1, 264119980), (2, 132059990), (4, 66029995), (5, 52823996), (10, 26411998), (20, 13205999), (1889, 139820), (3778, 69910), (6991, 37780), (7556, 34955), (9445, 27964), (13982, 18890)]