27841640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16187}}^1$

素因数の和:16241

約数の個数: 32

約数和(自身を含む): 64104480

約数和(自身を除く): 36262840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16187, 32374, 64748, 80935, 129496, 161870, 323740, 647480, 696041, 1392082, 2784164, 3480205, 5568328, 6960410, 13920820, 27841640]

約数ペア:

[(1, 27841640), (2, 13920820), (4, 6960410), (5, 5568328), (8, 3480205), (10, 2784164), (20, 1392082), (40, 696041), (43, 647480), (86, 323740), (172, 161870), (215, 129496), (344, 80935), (430, 64748), (860, 32374), (1720, 16187)]