81661715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{12107}}^1$

素因数の和:12202

約数の個数: 16

約数和(自身を含む): 104613120

約数和(自身を除く): 22951405

約数列:

[1, 5, 19, 71, 95, 355, 1349, 6745, 12107, 60535, 230033, 859597, 1150165, 4297985, 16332343, 81661715]

約数ペア:

[(1, 81661715), (5, 16332343), (19, 4297985), (71, 1150165), (95, 859597), (355, 230033), (1349, 60535), (6745, 12107)]