2840004

素因数分解:

$2^2\times 3^2\times {\mathrm{78889}}^1$

素因数の和:78899

約数の個数: 18

約数和(自身を含む): 7178990

約数和(自身を除く): 4338986

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 78889, 157778, 236667, 315556, 473334, 710001, 946668, 1420002, 2840004]

約数ペア:

[(1, 2840004), (2, 1420002), (3, 946668), (4, 710001), (6, 473334), (9, 315556), (12, 236667), (18, 157778), (36, 78889)]