51215495

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1621}}^1$

素因数の和:1786

約数の個数: 16

約数和(自身を含む): 63063360

約数和(自身を除く): 11847865

約数列:

[1, 5, 71, 89, 355, 445, 1621, 6319, 8105, 31595, 115091, 144269, 575455, 721345, 10243099, 51215495]

約数ペア:

[(1, 51215495), (5, 10243099), (71, 721345), (89, 575455), (355, 144269), (445, 115091), (1621, 31595), (6319, 8105)]