251017480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{896491}}^1$

素因数の和:896509

約数の個数: 32

約数和(自身を含む): 645474240

約数和(自身を除く): 394456760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 896491, 1792982, 3585964, 4482455, 6275437, 7171928, 8964910, 12550874, 17929820, 25101748, 31377185, 35859640, 50203496, 62754370, 125508740, 251017480]

約数ペア:

[(1, 251017480), (2, 125508740), (4, 62754370), (5, 50203496), (7, 35859640), (8, 31377185), (10, 25101748), (14, 17929820), (20, 12550874), (28, 8964910), (35, 7171928), (40, 6275437), (56, 4482455), (70, 3585964), (140, 1792982), (280, 896491)]