31101905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1264

約数の個数: 16

約数和(自身を含む): 38361600

約数和(自身を除く): 7259695

約数列:

[1, 5, 71, 79, 355, 395, 1109, 5545, 5609, 28045, 78739, 87611, 393695, 438055, 6220381, 31101905]

約数ペア:

[(1, 31101905), (5, 6220381), (71, 438055), (79, 393695), (355, 87611), (395, 78739), (1109, 28045), (5545, 5609)]