19644740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23957}}^1$

素因数の和:24007

約数の個数: 24

約数和(自身を含む): 42261912

約数和(自身を除く): 22617172

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23957, 47914, 95828, 119785, 239570, 479140, 982237, 1964474, 3928948, 4911185, 9822370, 19644740]

約数ペア:

[(1, 19644740), (2, 9822370), (4, 4911185), (5, 3928948), (10, 1964474), (20, 982237), (41, 479140), (82, 239570), (164, 119785), (205, 95828), (410, 47914), (820, 23957)]