20658275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1747}}^1$

素因数の和:1811

約数の個数: 24

約数和(自身を含む): 28611264

約数和(自身を除く): 7952989

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 1747, 2365, 8735, 11825, 19217, 43675, 75121, 96085, 375605, 480425, 826331, 1878025, 4131655, 20658275]

約数ペア:

[(1, 20658275), (5, 4131655), (11, 1878025), (25, 826331), (43, 480425), (55, 375605), (215, 96085), (275, 75121), (473, 43675), (1075, 19217), (1747, 11825), (2365, 8735)]