16231640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9437}}^1$

素因数の和:9491

約数の個数: 32

約数和(自身を含む): 37374480

約数和(自身を除く): 21142840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9437, 18874, 37748, 47185, 75496, 94370, 188740, 377480, 405791, 811582, 1623164, 2028955, 3246328, 4057910, 8115820, 16231640]

約数ペア:

[(1, 16231640), (2, 8115820), (4, 4057910), (5, 3246328), (8, 2028955), (10, 1623164), (20, 811582), (40, 405791), (43, 377480), (86, 188740), (172, 94370), (215, 75496), (344, 47185), (430, 37748), (860, 18874), (1720, 9437)]