18000785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{643}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 23647680

約数和(自身を除く): 5646895

約数列:

[1, 5, 11, 55, 509, 643, 2545, 3215, 5599, 7073, 27995, 35365, 327287, 1636435, 3600157, 18000785]

約数ペア:

[(1, 18000785), (5, 3600157), (11, 1636435), (55, 327287), (509, 35365), (643, 27995), (2545, 7073), (3215, 5599)]