87540905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{557}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 114079752

約数和(自身を除く): 26538847

約数列:

[1, 5, 17, 43, 85, 215, 557, 731, 1849, 2785, 3655, 9245, 9469, 23951, 31433, 47345, 119755, 157165, 407167, 1029893, 2035835, 5149465, 17508181, 87540905]

約数ペア:

[(1, 87540905), (5, 17508181), (17, 5149465), (43, 2035835), (85, 1029893), (215, 407167), (557, 157165), (731, 119755), (1849, 47345), (2785, 31433), (3655, 23951), (9245, 9469)]