223639960

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{6911}}^1$

素因数の和:7731

約数の個数: 32

約数和(自身を含む): 503884800

約数和(自身を除く): 280244840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6472, 6911, 8090, 13822, 16180, 27644, 32360, 34555, 55288, 69110, 138220, 276440, 5590999, 11181998, 22363996, 27954995, 44727992, 55909990, 111819980, 223639960]

約数ペア:

[(1, 223639960), (2, 111819980), (4, 55909990), (5, 44727992), (8, 27954995), (10, 22363996), (20, 11181998), (40, 5590999), (809, 276440), (1618, 138220), (3236, 69110), (4045, 55288), (6472, 34555), (6911, 32360), (8090, 27644), (13822, 16180)]