81340985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{39971}}^1$

素因数の和:40024

約数の個数: 16

約数和(自身を含む): 109363392

約数和(自身を除く): 28022407

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 39971, 199855, 439681, 1478927, 2198405, 7394635, 16268197, 81340985]

約数ペア:

[(1, 81340985), (5, 16268197), (11, 7394635), (37, 2198405), (55, 1478927), (185, 439681), (407, 199855), (2035, 39971)]