268031270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{66509}}^1$

素因数の和:66560

約数の個数: 32

約数和(自身を含む): 536336640

約数和(自身を除く): 268305370

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 66509, 133018, 332545, 665090, 864617, 1729234, 2061779, 4123558, 4323085, 8646170, 10308895, 20617790, 26803127, 53606254, 134015635, 268031270]

約数ペア:

[(1, 268031270), (2, 134015635), (5, 53606254), (10, 26803127), (13, 20617790), (26, 10308895), (31, 8646170), (62, 4323085), (65, 4123558), (130, 2061779), (155, 1729234), (310, 864617), (403, 665090), (806, 332545), (2015, 133018), (4030, 66509)]