18453920

素因数分解:

$2^5\times 5^1\times {\mathrm{115337}}^1$

素因数の和:115352

約数の個数: 24

約数和(自身を含む): 43597764

約数和(自身を除く): 25143844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 115337, 230674, 461348, 576685, 922696, 1153370, 1845392, 2306740, 3690784, 4613480, 9226960, 18453920]

約数ペア:

[(1, 18453920), (2, 9226960), (4, 4613480), (5, 3690784), (8, 2306740), (10, 1845392), (16, 1153370), (20, 922696), (32, 576685), (40, 461348), (80, 230674), (160, 115337)]