28719290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{168937}}^1$

素因数の和:168961

約数の個数: 16

約数和(自身を含む): 54735912

約数和(自身を除く): 26016622

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 168937, 337874, 844685, 1689370, 2871929, 5743858, 14359645, 28719290]

約数ペア:

[(1, 28719290), (2, 14359645), (5, 5743858), (10, 2871929), (17, 1689370), (34, 844685), (85, 337874), (170, 168937)]