81840164

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127081}}^1$

素因数の和:127115

約数の個数: 24

約数和(自身を含む): 170798208

約数和(自身を除く): 88958044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 127081, 254162, 508324, 889567, 1779134, 2922863, 3558268, 5845726, 11691452, 20460041, 40920082, 81840164]

約数ペア:

[(1, 81840164), (2, 40920082), (4, 20460041), (7, 11691452), (14, 5845726), (23, 3558268), (28, 2922863), (46, 1779134), (92, 889567), (161, 508324), (322, 254162), (644, 127081)]