8667640

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{643}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 19590480

約数和(自身を除く): 10922840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 643, 674, 1286, 1348, 1685, 2572, 2696, 3215, 3370, 5144, 6430, 6740, 12860, 13480, 25720, 216691, 433382, 866764, 1083455, 1733528, 2166910, 4333820, 8667640]

約数ペア:

[(1, 8667640), (2, 4333820), (4, 2166910), (5, 1733528), (8, 1083455), (10, 866764), (20, 433382), (40, 216691), (337, 25720), (643, 13480), (674, 12860), (1286, 6740), (1348, 6430), (1685, 5144), (2572, 3370), (2696, 3215)]