209987305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{81233}}^1$

素因数の和:81296

約数の個数: 16

約数和(自身を含む): 280744704

約数和(自身を除く): 70757399

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 81233, 406165, 893563, 3817951, 4467815, 19089755, 41997461, 209987305]

約数ペア:

[(1, 209987305), (5, 41997461), (11, 19089755), (47, 4467815), (55, 3817951), (235, 893563), (517, 406165), (2585, 81233)]