642997465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{911}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 865976832

約数和(自身を除く): 222979367

約数列:

[1, 5, 11, 41, 55, 205, 313, 451, 911, 1565, 2255, 3443, 4555, 10021, 12833, 17215, 37351, 50105, 64165, 141163, 186755, 285143, 410861, 705815, 1425715, 2054305, 3136573, 11690863, 15682865, 58454315, 128599493, 642997465]

約数ペア:

[(1, 642997465), (5, 128599493), (11, 58454315), (41, 15682865), (55, 11690863), (205, 3136573), (313, 2054305), (451, 1425715), (911, 705815), (1565, 410861), (2255, 285143), (3443, 186755), (4555, 141163), (10021, 64165), (12833, 50105), (17215, 37351)]