20256145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44519}}^1$

素因数の和:44544

約数の個数: 16

約数和(自身を含む): 29917440

約数和(自身を除く): 9661295

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 44519, 222595, 311633, 578747, 1558165, 2893735, 4051229, 20256145]

約数ペア:

[(1, 20256145), (5, 4051229), (7, 2893735), (13, 1558165), (35, 578747), (65, 311633), (91, 222595), (455, 44519)]