7880665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3960

約数の個数: 16

約数和(自身を含む): 10515456

約数和(自身を除く): 2634791

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 3911, 19555, 50843, 121241, 254215, 606205, 1576133, 7880665]

約数ペア:

[(1, 7880665), (5, 1576133), (13, 606205), (31, 254215), (65, 121241), (155, 50843), (403, 19555), (2015, 3911)]