128376892

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199343}}^1$

素因数の和:199377

約数の個数: 24

約数和(自身を含む): 267918336

約数和(自身を除く): 139541444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 199343, 398686, 797372, 1395401, 2790802, 4584889, 5581604, 9169778, 18339556, 32094223, 64188446, 128376892]

約数ペア:

[(1, 128376892), (2, 64188446), (4, 32094223), (7, 18339556), (14, 9169778), (23, 5581604), (28, 4584889), (46, 2790802), (92, 1395401), (161, 797372), (322, 398686), (644, 199343)]