128412956

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199399}}^1$

素因数の和:199433

約数の個数: 24

約数和(自身を含む): 267993600

約数和(自身を除く): 139580644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 199399, 398798, 797596, 1395793, 2791586, 4586177, 5583172, 9172354, 18344708, 32103239, 64206478, 128412956]

約数ペア:

[(1, 128412956), (2, 64206478), (4, 32103239), (7, 18344708), (14, 9172354), (23, 5583172), (28, 4586177), (46, 2791586), (92, 1395793), (161, 797596), (322, 398798), (644, 199399)]