128943745

素因数分解:

$5^1\times 7^2\times {\mathrm{617}}^1\times {\mathrm{853}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 180498024

約数和(自身を除く): 51554279

約数列:

[1, 5, 7, 35, 49, 245, 617, 853, 3085, 4265, 4319, 5971, 21595, 29855, 30233, 41797, 151165, 208985, 526301, 2631505, 3684107, 18420535, 25788749, 128943745]

約数ペア:

[(1, 128943745), (5, 25788749), (7, 18420535), (35, 3684107), (49, 2631505), (245, 526301), (617, 208985), (853, 151165), (3085, 41797), (4265, 30233), (4319, 29855), (5971, 21595)]