1990556

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 3636864

約数和(自身を除く): 1646308

約数列:

[1, 2, 4, 43, 71, 86, 142, 163, 172, 284, 326, 652, 3053, 6106, 7009, 11573, 12212, 14018, 23146, 28036, 46292, 497639, 995278, 1990556]

約数ペア:

[(1, 1990556), (2, 995278), (4, 497639), (43, 46292), (71, 28036), (86, 23146), (142, 14018), (163, 12212), (172, 11573), (284, 7009), (326, 6106), (652, 3053)]