12509305

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 15523200

約数和(自身を除く): 3013895

約数列:

[1, 5, 41, 139, 205, 439, 695, 2195, 5699, 17999, 28495, 61021, 89995, 305105, 2501861, 12509305]

約数ペア:

[(1, 12509305), (5, 2501861), (41, 305105), (139, 89995), (205, 61021), (439, 28495), (695, 17999), (2195, 5699)]