16018025

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 20590944

約数和(自身を除く): 4572919

約数列:

[1, 5, 25, 67, 73, 131, 335, 365, 655, 1675, 1825, 3275, 4891, 8777, 9563, 24455, 43885, 47815, 122275, 219425, 239075, 640721, 3203605, 16018025]

約数ペア:

[(1, 16018025), (5, 3203605), (25, 640721), (67, 239075), (73, 219425), (131, 122275), (335, 47815), (365, 43885), (655, 24455), (1675, 9563), (1825, 8777), (3275, 4891)]