28775815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7873}}^1$

素因数の和:7938

約数の個数: 16

約数和(自身を含む): 37417248

約数和(自身を除く): 8641433

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 7873, 39365, 133841, 338539, 669205, 1692695, 5755163, 28775815]

約数ペア:

[(1, 28775815), (5, 5755163), (17, 1692695), (43, 669205), (85, 338539), (215, 133841), (731, 39365), (3655, 7873)]