81554384

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{268271}}^1$

素因数の和:268298

約数の個数: 20

約数和(自身を含む): 166328640

約数和(自身を除く): 84774256

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 268271, 536542, 1073084, 2146168, 4292336, 5097149, 10194298, 20388596, 40777192, 81554384]

約数ペア:

[(1, 81554384), (2, 40777192), (4, 20388596), (8, 10194298), (16, 5097149), (19, 4292336), (38, 2146168), (76, 1073084), (152, 536542), (304, 268271)]