66720355

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{3433}}^1$

素因数の和:3487

約数の個数: 24

約数和(自身を含む): 90492768

約数和(自身を除く): 23772413

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1495, 3433, 3887, 17165, 19435, 44629, 78959, 223145, 394795, 580177, 1026467, 2900885, 5132335, 13344071, 66720355]

約数ペア:

[(1, 66720355), (5, 13344071), (13, 5132335), (23, 2900885), (65, 1026467), (115, 580177), (169, 394795), (299, 223145), (845, 78959), (1495, 44629), (3433, 19435), (3887, 17165)]