81444455

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{3761}}^1$

素因数の和:3898

約数の個数: 16

約数和(自身を含む): 100761408

約数和(自身を除く): 19316953

約数列:

[1, 5, 61, 71, 305, 355, 3761, 4331, 18805, 21655, 229421, 267031, 1147105, 1335155, 16288891, 81444455]

約数ペア:

[(1, 81444455), (5, 16288891), (61, 1335155), (71, 1147105), (305, 267031), (355, 229421), (3761, 21655), (4331, 18805)]