1331605

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 1838592

約数和(自身を除く): 506987

約数列:

[1, 5, 11, 31, 55, 71, 121, 155, 341, 355, 605, 781, 1705, 2201, 3751, 3905, 8591, 11005, 18755, 24211, 42955, 121055, 266321, 1331605]

約数ペア:

[(1, 1331605), (5, 266321), (11, 121055), (31, 42955), (55, 24211), (71, 18755), (121, 11005), (155, 8591), (341, 3905), (355, 3751), (605, 2201), (781, 1705)]