8431480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2087}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 19167840

約数和(自身を除く): 10736360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 2087, 4040, 4174, 8348, 10435, 16696, 20870, 41740, 83480, 210787, 421574, 843148, 1053935, 1686296, 2107870, 4215740, 8431480]

約数ペア:

[(1, 8431480), (2, 4215740), (4, 2107870), (5, 1686296), (8, 1053935), (10, 843148), (20, 421574), (40, 210787), (101, 83480), (202, 41740), (404, 20870), (505, 16696), (808, 10435), (1010, 8348), (2020, 4174), (2087, 4040)]