81017105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1297}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 108268776

約数和(自身を除く): 27251671

約数列:

[1, 5, 13, 31, 65, 155, 403, 961, 1297, 2015, 4805, 6485, 12493, 16861, 40207, 62465, 84305, 201035, 522691, 1246417, 2613455, 6232085, 16203421, 81017105]

約数ペア:

[(1, 81017105), (5, 16203421), (13, 6232085), (31, 2613455), (65, 1246417), (155, 522691), (403, 201035), (961, 84305), (1297, 62465), (2015, 40207), (4805, 16861), (6485, 12493)]