8280220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31847}}^1$

素因数の和:31869

約数の個数: 24

約数和(自身を含む): 18726624

約数和(自身を除く): 10446404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31847, 63694, 127388, 159235, 318470, 414011, 636940, 828022, 1656044, 2070055, 4140110, 8280220]

約数ペア:

[(1, 8280220), (2, 4140110), (4, 2070055), (5, 1656044), (10, 828022), (13, 636940), (20, 414011), (26, 318470), (52, 159235), (65, 127388), (130, 63694), (260, 31847)]