138419540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{988711}}^1$

素因数の和:988727

約数の個数: 24

約数和(自身を含む): 332207232

約数和(自身を除く): 193787692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 988711, 1977422, 3954844, 4943555, 6920977, 9887110, 13841954, 19774220, 27683908, 34604885, 69209770, 138419540]

約数ペア:

[(1, 138419540), (2, 69209770), (4, 34604885), (5, 27683908), (7, 19774220), (10, 13841954), (14, 9887110), (20, 6920977), (28, 4943555), (35, 3954844), (70, 1977422), (140, 988711)]