99990820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{36493}}^1$

素因数の和:36639

約数の個数: 24

約数和(自身を含む): 211519224

約数和(自身を除く): 111528404

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 36493, 72986, 145972, 182465, 364930, 729860, 4999541, 9999082, 19998164, 24997705, 49995410, 99990820]

約数ペア:

[(1, 99990820), (2, 49995410), (4, 24997705), (5, 19998164), (10, 9999082), (20, 4999541), (137, 729860), (274, 364930), (548, 182465), (685, 145972), (1370, 72986), (2740, 36493)]