128767478

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{399899}}^1$

素因数の和:399931

約数の個数: 16

約数和(自身を含む): 230342400

約数和(自身を除く): 101574922

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 399899, 799798, 2799293, 5598586, 9197677, 18395354, 64383739, 128767478]

約数ペア:

[(1, 128767478), (2, 64383739), (7, 18395354), (14, 9197677), (23, 5598586), (46, 2799293), (161, 799798), (322, 399899)]