1811440

素因数分解:

$2^4\times 5^1\times {\mathrm{22643}}^1$

素因数の和:22656

約数の個数: 20

約数和(自身を含む): 4211784

約数和(自身を除く): 2400344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22643, 45286, 90572, 113215, 181144, 226430, 362288, 452860, 905720, 1811440]

約数ペア:

[(1, 1811440), (2, 905720), (4, 452860), (5, 362288), (8, 226430), (10, 181144), (16, 113215), (20, 90572), (40, 45286), (80, 22643)]