128534690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{1039}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 235872000

約数和(自身を除く): 107337310

約数列:

[1, 2, 5, 10, 89, 139, 178, 278, 445, 695, 890, 1039, 1390, 2078, 5195, 10390, 12371, 24742, 61855, 92471, 123710, 144421, 184942, 288842, 462355, 722105, 924710, 1444210, 12853469, 25706938, 64267345, 128534690]

約数ペア:

[(1, 128534690), (2, 64267345), (5, 25706938), (10, 12853469), (89, 1444210), (139, 924710), (178, 722105), (278, 462355), (445, 288842), (695, 184942), (890, 144421), (1039, 123710), (1390, 92471), (2078, 61855), (5195, 24742), (10390, 12371)]