4391480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1087}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 9987840

約数和(自身を除く): 5596360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 1087, 2020, 2174, 4040, 4348, 5435, 8696, 10870, 21740, 43480, 109787, 219574, 439148, 548935, 878296, 1097870, 2195740, 4391480]

約数ペア:

[(1, 4391480), (2, 2195740), (4, 1097870), (5, 878296), (8, 548935), (10, 439148), (20, 219574), (40, 109787), (101, 43480), (202, 21740), (404, 10870), (505, 8696), (808, 5435), (1010, 4348), (1087, 4040), (2020, 2174)]