20880451670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160618859}}^1$

素因数の和:160618879

約数の個数: 16

約数和(自身を含む): 40475952720

約数和(自身を除く): 19595501050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 160618859, 321237718, 803094295, 1606188590, 2088045167, 4176090334, 10440225835, 20880451670]

約数ペア:

[(1, 20880451670), (2, 10440225835), (5, 4176090334), (10, 2088045167), (13, 1606188590), (26, 803094295), (65, 321237718), (130, 160618859)]