20120555

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44221}}^1$

素因数の和:44246

約数の個数: 16

約数和(自身を含む): 29717184

約数和(自身を除く): 9596629

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 44221, 221105, 309547, 574873, 1547735, 2874365, 4024111, 20120555]

約数ペア:

[(1, 20120555), (5, 4024111), (7, 2874365), (13, 1547735), (35, 574873), (65, 309547), (91, 221105), (455, 44221)]