81946945

素因数分解:

$5^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1\times {\mathrm{349}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 99590400

約数和(自身を除く): 17643455

約数列:

[1, 5, 151, 311, 349, 755, 1555, 1745, 46961, 52699, 108539, 234805, 263495, 542695, 16389389, 81946945]

約数ペア:

[(1, 81946945), (5, 16389389), (151, 542695), (311, 263495), (349, 234805), (755, 108539), (1555, 52699), (1745, 46961)]