28039690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3889}}^1$

素因数の和:4006

約数の個数: 32

約数和(自身を含む): 58256640

約数和(自身を除く): 30216950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 3605, 3889, 7210, 7778, 19445, 27223, 38890, 54446, 136115, 272230, 400567, 801134, 2002835, 2803969, 4005670, 5607938, 14019845, 28039690]

約数ペア:

[(1, 28039690), (2, 14019845), (5, 5607938), (7, 4005670), (10, 2803969), (14, 2002835), (35, 801134), (70, 400567), (103, 272230), (206, 136115), (515, 54446), (721, 38890), (1030, 27223), (1442, 19445), (3605, 7778), (3889, 7210)]