18510740

素因数分解:

$2^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1999}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 38976000

約数和(自身を除く): 20465260

約数列:

[1, 2, 4, 5, 10, 20, 463, 926, 1852, 1999, 2315, 3998, 4630, 7996, 9260, 9995, 19990, 39980, 925537, 1851074, 3702148, 4627685, 9255370, 18510740]

約数ペア:

[(1, 18510740), (2, 9255370), (4, 4627685), (5, 3702148), (10, 1851074), (20, 925537), (463, 39980), (926, 19990), (1852, 9995), (1999, 9260), (2315, 7996), (3998, 4630)]