210008065

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1\times {\mathrm{653}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 254840256

約数和(自身を除く): 44832191

約数列:

[1, 5, 131, 491, 653, 655, 2455, 3265, 64321, 85543, 320623, 321605, 427715, 1603115, 42001613, 210008065]

約数ペア:

[(1, 210008065), (5, 42001613), (131, 1603115), (491, 427715), (653, 321605), (655, 320623), (2455, 85543), (3265, 64321)]