12871235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2878

約数の個数: 16

約数和(自身を含む): 16873920

約数和(自身を除く): 4002685

約数列:

[1, 5, 13, 65, 71, 355, 923, 2789, 4615, 13945, 36257, 181285, 198019, 990095, 2574247, 12871235]

約数ペア:

[(1, 12871235), (5, 2574247), (13, 990095), (65, 198019), (71, 181285), (355, 36257), (923, 13945), (2789, 4615)]