128127805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{63587}}^1$

素因数の和:63636

約数の個数: 16

約数和(自身を含む): 170924544

約数和(自身を除く): 42796739

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 63587, 317935, 826631, 1971197, 4133155, 9855985, 25625561, 128127805]

約数ペア:

[(1, 128127805), (5, 25625561), (13, 9855985), (31, 4133155), (65, 1971197), (155, 826631), (403, 317935), (2015, 63587)]