81719105

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{997}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 107388792

約数和(自身を除く): 25669687

約数列:

[1, 5, 13, 65, 97, 169, 485, 845, 997, 1261, 4985, 6305, 12961, 16393, 64805, 81965, 96709, 168493, 483545, 842465, 1257217, 6286085, 16343821, 81719105]

約数ペア:

[(1, 81719105), (5, 16343821), (13, 6286085), (65, 1257217), (97, 842465), (169, 483545), (485, 168493), (845, 96709), (997, 81965), (1261, 64805), (4985, 16393), (6305, 12961)]