81315455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{33811}}^1$

素因数の和:33866

約数の個数: 16

約数和(自身を含む): 107927904

約数和(自身を除く): 26612449

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 33811, 169055, 439543, 1251007, 2197715, 6255035, 16263091, 81315455]

約数ペア:

[(1, 81315455), (5, 16263091), (13, 6255035), (37, 2197715), (65, 1251007), (185, 439543), (481, 169055), (2405, 33811)]