81020975

素因数分解:

$5^2\times 7^1\times {\mathrm{653}}^1\times {\mathrm{709}}^1$

素因数の和:1379

約数の個数: 24

約数和(自身を含む): 115156320

約数和(自身を除く): 34135345

約数列:

[1, 5, 7, 25, 35, 175, 653, 709, 3265, 3545, 4571, 4963, 16325, 17725, 22855, 24815, 114275, 124075, 462977, 2314885, 3240839, 11574425, 16204195, 81020975]

約数ペア:

[(1, 81020975), (5, 16204195), (7, 11574425), (25, 3240839), (35, 2314885), (175, 462977), (653, 124075), (709, 114275), (3265, 24815), (3545, 22855), (4571, 17725), (4963, 16325)]