18346280

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1361}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 41432040

約数和(自身を除く): 23085760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1361, 1685, 2696, 2722, 3370, 5444, 6740, 6805, 10888, 13480, 13610, 27220, 54440, 458657, 917314, 1834628, 2293285, 3669256, 4586570, 9173140, 18346280]

約数ペア:

[(1, 18346280), (2, 9173140), (4, 4586570), (5, 3669256), (8, 2293285), (10, 1834628), (20, 917314), (40, 458657), (337, 54440), (674, 27220), (1348, 13610), (1361, 13480), (1685, 10888), (2696, 6805), (2722, 6740), (3370, 5444)]