20104895

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{859}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 25098240

約数和(自身を除く): 4993345

約数列:

[1, 5, 31, 151, 155, 755, 859, 4295, 4681, 23405, 26629, 129709, 133145, 648545, 4020979, 20104895]

約数ペア:

[(1, 20104895), (5, 4020979), (31, 648545), (151, 133145), (155, 129709), (755, 26629), (859, 23405), (4295, 4681)]