8474740

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{659}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 17851680

約数和(自身を除く): 9376940

約数列:

[1, 2, 4, 5, 10, 20, 643, 659, 1286, 1318, 2572, 2636, 3215, 3295, 6430, 6590, 12860, 13180, 423737, 847474, 1694948, 2118685, 4237370, 8474740]

約数ペア:

[(1, 8474740), (2, 4237370), (4, 2118685), (5, 1694948), (10, 847474), (20, 423737), (643, 13180), (659, 12860), (1286, 6590), (1318, 6430), (2572, 3295), (2636, 3215)]