128438205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{28447}}^1$

素因数の和:28505

約数の個数: 32

約数和(自身を含む): 240328704

約数和(自身を除く): 111890499

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 28447, 85341, 142235, 199129, 426705, 597387, 995645, 1223221, 2986935, 3669663, 6116105, 8562547, 18348315, 25687641, 42812735, 128438205]

約数ペア:

[(1, 128438205), (3, 42812735), (5, 25687641), (7, 18348315), (15, 8562547), (21, 6116105), (35, 3669663), (43, 2986935), (105, 1223221), (129, 995645), (215, 597387), (301, 426705), (645, 199129), (903, 142235), (1505, 85341), (4515, 28447)]