20031280

素因数分解:

$2^4\times 5^1\times {\mathrm{337}}^1\times {\mathrm{743}}^1$

素因数の和:1093

約数の個数: 40

約数和(自身を含む): 46773792

約数和(自身を除く): 26742512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 337, 674, 743, 1348, 1486, 1685, 2696, 2972, 3370, 3715, 5392, 5944, 6740, 7430, 11888, 13480, 14860, 26960, 29720, 59440, 250391, 500782, 1001564, 1251955, 2003128, 2503910, 4006256, 5007820, 10015640, 20031280]

約数ペア:

[(1, 20031280), (2, 10015640), (4, 5007820), (5, 4006256), (8, 2503910), (10, 2003128), (16, 1251955), (20, 1001564), (40, 500782), (80, 250391), (337, 59440), (674, 29720), (743, 26960), (1348, 14860), (1486, 13480), (1685, 11888), (2696, 7430), (2972, 6740), (3370, 5944), (3715, 5392)]