128400065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{20693}}^1$

素因数の和:20788

約数の個数: 16

約数和(自身を含む): 165386448

約数和(自身を除く): 36986383

約数列:

[1, 5, 17, 73, 85, 365, 1241, 6205, 20693, 103465, 351781, 1510589, 1758905, 7552945, 25680013, 128400065]

約数ペア:

[(1, 128400065), (5, 25680013), (17, 7552945), (73, 1758905), (85, 1510589), (365, 351781), (1241, 103465), (6205, 20693)]