641971265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1\times {\mathrm{6451}}^1$

素因数の和:8000

約数の個数: 16

約数和(自身を含む): 830294976

約数和(自身を除く): 188323711

約数列:

[1, 5, 13, 65, 1531, 6451, 7655, 19903, 32255, 83863, 99515, 419315, 9876481, 49382405, 128394253, 641971265]

約数ペア:

[(1, 641971265), (5, 128394253), (13, 49382405), (65, 9876481), (1531, 419315), (6451, 99515), (7655, 83863), (19903, 32255)]