22813640

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{887}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 51468480

約数和(自身を除く): 28654840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 887, 1286, 1774, 2572, 3215, 3548, 4435, 5144, 6430, 7096, 8870, 12860, 17740, 25720, 35480, 570341, 1140682, 2281364, 2851705, 4562728, 5703410, 11406820, 22813640]

約数ペア:

[(1, 22813640), (2, 11406820), (4, 5703410), (5, 4562728), (8, 2851705), (10, 2281364), (20, 1140682), (40, 570341), (643, 35480), (887, 25720), (1286, 17740), (1774, 12860), (2572, 8870), (3215, 7096), (3548, 6430), (4435, 5144)]