18989180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135637}}^1$

素因数の和:135653

約数の個数: 24

約数和(自身を含む): 45574368

約数和(自身を除く): 26585188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135637, 271274, 542548, 678185, 949459, 1356370, 1898918, 2712740, 3797836, 4747295, 9494590, 18989180]

約数ペア:

[(1, 18989180), (2, 9494590), (4, 4747295), (5, 3797836), (7, 2712740), (10, 1898918), (14, 1356370), (20, 949459), (28, 678185), (35, 542548), (70, 271274), (140, 135637)]