18089840

素因数分解:

$2^4\times 5^1\times {\mathrm{226123}}^1$

素因数の和:226136

約数の個数: 20

約数和(自身を含む): 42059064

約数和(自身を除く): 23969224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226123, 452246, 904492, 1130615, 1808984, 2261230, 3617968, 4522460, 9044920, 18089840]

約数ペア:

[(1, 18089840), (2, 9044920), (4, 4522460), (5, 3617968), (8, 2261230), (10, 1808984), (16, 1130615), (20, 904492), (40, 452246), (80, 226123)]