1288392015

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1997507}}^1$

素因数の和:1997558

約数の個数: 16

約数和(自身を含む): 2109368448

約数和(自身を除く): 820976433

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1997507, 5992521, 9987535, 29962605, 85892801, 257678403, 429464005, 1288392015]

約数ペア:

[(1, 1288392015), (3, 429464005), (5, 257678403), (15, 85892801), (43, 29962605), (129, 9987535), (215, 5992521), (645, 1997507)]