128385275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{1031}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 169301664

約数和(自身を除く): 40916389

約数列:

[1, 5, 17, 25, 85, 293, 425, 1031, 1465, 4981, 5155, 7325, 17527, 24905, 25775, 87635, 124525, 302083, 438175, 1510415, 5135411, 7552075, 25677055, 128385275]

約数ペア:

[(1, 128385275), (5, 25677055), (17, 7552075), (25, 5135411), (85, 1510415), (293, 438175), (425, 302083), (1031, 124525), (1465, 87635), (4981, 25775), (5155, 24905), (7325, 17527)]