87724405

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{4051}}^1$

素因数の和:4188

約数の個数: 16

約数和(自身を含む): 108528768

約数和(自身を除く): 20804363

約数列:

[1, 5, 61, 71, 305, 355, 4051, 4331, 20255, 21655, 247111, 287621, 1235555, 1438105, 17544881, 87724405]

約数ペア:

[(1, 87724405), (5, 17544881), (61, 1438105), (71, 1235555), (305, 287621), (355, 247111), (4051, 21655), (4331, 20255)]