12777505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3709}}^1$

素因数の和:3780

約数の個数: 16

約数和(自身を含む): 16828560

約数和(自身を除く): 4051055

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 3709, 18545, 48217, 196577, 241085, 982885, 2555501, 12777505]

約数ペア:

[(1, 12777505), (5, 2555501), (13, 982885), (53, 241085), (65, 196577), (265, 48217), (689, 18545), (3445, 3709)]