12478256

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2591}}^1$

素因数の和:2649

約数の個数: 40

約数和(自身を含む): 28283904

約数和(自身を除く): 15805648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 2591, 4816, 5182, 10364, 18137, 20728, 36274, 41456, 72548, 111413, 145096, 222826, 290192, 445652, 779891, 891304, 1559782, 1782608, 3119564, 6239128, 12478256]

約数ペア:

[(1, 12478256), (2, 6239128), (4, 3119564), (7, 1782608), (8, 1559782), (14, 891304), (16, 779891), (28, 445652), (43, 290192), (56, 222826), (86, 145096), (112, 111413), (172, 72548), (301, 41456), (344, 36274), (602, 20728), (688, 18137), (1204, 10364), (2408, 5182), (2591, 4816)]