39709640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23087}}^1$

素因数の和:23141

約数の個数: 32

約数和(自身を含む): 91428480

約数和(自身を除く): 51718840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 23087, 46174, 92348, 115435, 184696, 230870, 461740, 923480, 992741, 1985482, 3970964, 4963705, 7941928, 9927410, 19854820, 39709640]

約数ペア:

[(1, 39709640), (2, 19854820), (4, 9927410), (5, 7941928), (8, 4963705), (10, 3970964), (20, 1985482), (40, 992741), (43, 923480), (86, 461740), (172, 230870), (215, 184696), (344, 115435), (430, 92348), (860, 46174), (1720, 23087)]