20278996855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1803379}}^1$

素因数の和:1803570

約数の個数: 16

約数和(自身を含む): 26358202080

約数和(自身を除く): 6079205225

約数列:

[1, 5, 13, 65, 173, 865, 2249, 11245, 1803379, 9016895, 23443927, 117219635, 311984567, 1559922835, 4055799371, 20278996855]

約数ペア:

[(1, 20278996855), (5, 4055799371), (13, 1559922835), (65, 311984567), (173, 117219635), (865, 23443927), (2249, 9016895), (11245, 1803379)]