39920465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1399}}^1$

素因数の和:1856

約数の個数: 16

約数和(自身を含む): 51744000

約数和(自身を除く): 11823535

約数列:

[1, 5, 13, 65, 439, 1399, 2195, 5707, 6995, 18187, 28535, 90935, 614161, 3070805, 7984093, 39920465]

約数ペア:

[(1, 39920465), (5, 7984093), (13, 3070805), (65, 614161), (439, 90935), (1399, 28535), (2195, 18187), (5707, 6995)]