85780360

素因数分解:

$2^3\times 5^1\times {\mathrm{2144509}}^1$

素因数の和:2144520

約数の個数: 16

約数和(自身を含む): 193005900

約数和(自身を除く): 107225540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2144509, 4289018, 8578036, 10722545, 17156072, 21445090, 42890180, 85780360]

約数ペア:

[(1, 85780360), (2, 42890180), (4, 21445090), (5, 17156072), (8, 10722545), (10, 8578036), (20, 4289018), (40, 2144509)]