309205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 16

約数和(自身を含む): 411264

約数和(自身を除く): 102059

約数列:

[1, 5, 13, 65, 67, 71, 335, 355, 871, 923, 4355, 4615, 4757, 23785, 61841, 309205]

約数ペア:

[(1, 309205), (5, 61841), (13, 23785), (65, 4757), (67, 4615), (71, 4355), (335, 923), (355, 871)]