664892015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{181913}}^1$

素因数の和:181978

約数の個数: 16

約数和(自身を含む): 864455328

約数和(自身を除く): 199563313

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 181913, 909565, 3092521, 7822259, 15462605, 39111295, 132978403, 664892015]

約数ペア:

[(1, 664892015), (5, 132978403), (17, 39111295), (43, 15462605), (85, 7822259), (215, 3092521), (731, 909565), (3655, 181913)]