18161180

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1987}}^1$

素因数の和:2453

約数の個数: 24

約数和(自身を含む): 38241168

約数和(自身を除く): 20079988

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 1987, 2285, 3974, 4570, 7948, 9140, 9935, 19870, 39740, 908059, 1816118, 3632236, 4540295, 9080590, 18161180]

約数ペア:

[(1, 18161180), (2, 9080590), (4, 4540295), (5, 3632236), (10, 1816118), (20, 908059), (457, 39740), (914, 19870), (1828, 9935), (1987, 9140), (2285, 7948), (3974, 4570)]