18624140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10463}}^1$

素因数の和:10561

約数の個数: 24

約数和(自身を含む): 39553920

約数和(自身を除く): 20929780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10463, 20926, 41852, 52315, 104630, 209260, 931207, 1862414, 3724828, 4656035, 9312070, 18624140]

約数ペア:

[(1, 18624140), (2, 9312070), (4, 4656035), (5, 3724828), (10, 1862414), (20, 931207), (89, 209260), (178, 104630), (356, 52315), (445, 41852), (890, 20926), (1780, 10463)]