12778355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4339}}^1$

素因数の和:4394

約数の個数: 16

約数和(自身を含む): 16665600

約数和(自身を除く): 3887245

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 4339, 21695, 82441, 134509, 412205, 672545, 2555671, 12778355]

約数ペア:

[(1, 12778355), (5, 2555671), (19, 672545), (31, 412205), (95, 134509), (155, 82441), (589, 21695), (2945, 4339)]