20565700702675

素因数分解:

$5^2\times {\mathrm{809}}^1\times {\mathrm{3923}}^1\times {\mathrm{259201}}^1$

素因数の和:263943

約数の個数: 24

約数和(自身を含む): 25539598151280

約数和(自身を除く): 4973897448605

約数列:

[1, 5, 25, 809, 3923, 4045, 19615, 20225, 98075, 259201, 1296005, 3173707, 6480025, 15868535, 79342675, 209693609, 1016845523, 1048468045, 5084227615, 5242340225, 25421138075, 822628028107, 4113140140535, 20565700702675]

約数ペア:

[(1, 20565700702675), (5, 4113140140535), (25, 822628028107), (809, 25421138075), (3923, 5242340225), (4045, 5084227615), (19615, 1048468045), (20225, 1016845523), (98075, 209693609), (259201, 79342675), (1296005, 15868535), (3173707, 6480025)]