258817585

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{23561}}^1$

素因数の和:23605

約数の個数: 16

約数和(自身を含む): 336465360

約数和(自身を除く): 77647775

約数列:

[1, 5, 13, 65, 169, 845, 2197, 10985, 23561, 117805, 306293, 1531465, 3981809, 19909045, 51763517, 258817585]

約数ペア:

[(1, 258817585), (5, 51763517), (13, 19909045), (65, 3981809), (169, 1531465), (845, 306293), (2197, 117805), (10985, 23561)]