128957188040

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3538891}}^1$

素因数の和:3539813

約数の個数: 32

約数和(自身を含む): 290472255360

約数和(自身を除く): 161515067320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3644, 4555, 7288, 9110, 18220, 36440, 3538891, 7077782, 14155564, 17694455, 28311128, 35388910, 70777820, 141555640, 3223929701, 6447859402, 12895718804, 16119648505, 25791437608, 32239297010, 64478594020, 128957188040]

約数ペア:

[(1, 128957188040), (2, 64478594020), (4, 32239297010), (5, 25791437608), (8, 16119648505), (10, 12895718804), (20, 6447859402), (40, 3223929701), (911, 141555640), (1822, 70777820), (3644, 35388910), (4555, 28311128), (7288, 17694455), (9110, 14155564), (18220, 7077782), (36440, 3538891)]