90851440

素因数分解:

$2^4\times 5^1\times {\mathrm{1135643}}^1$

素因数の和:1135656

約数の個数: 20

約数和(自身を含む): 211229784

約数和(自身を除く): 120378344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1135643, 2271286, 4542572, 5678215, 9085144, 11356430, 18170288, 22712860, 45425720, 90851440]

約数ペア:

[(1, 90851440), (2, 45425720), (4, 22712860), (5, 18170288), (8, 11356430), (10, 9085144), (16, 5678215), (20, 4542572), (40, 2271286), (80, 1135643)]