19981180

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9337}}^1$

素因数の和:9453

約数の個数: 24

約数和(自身を含む): 42357168

約数和(自身を除く): 22375988

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9337, 18674, 37348, 46685, 93370, 186740, 999059, 1998118, 3996236, 4995295, 9990590, 19981180]

約数ペア:

[(1, 19981180), (2, 9990590), (4, 4995295), (5, 3996236), (10, 1998118), (20, 999059), (107, 186740), (214, 93370), (428, 46685), (535, 37348), (1070, 18674), (2140, 9337)]