256342471

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25031}}^1$

素因数の和:25075

約数の個数: 24

約数和(自身を含む): 342437760

約数和(自身を除く): 86095289

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 10241, 25031, 175217, 275341, 475589, 1226519, 1927387, 3329123, 5231479, 13491709, 23303861, 36620353, 256342471]

約数ペア:

[(1, 256342471), (7, 36620353), (11, 23303861), (19, 13491709), (49, 5231479), (77, 3329123), (133, 1927387), (209, 1226519), (539, 475589), (931, 275341), (1463, 175217), (10241, 25031)]