20071720

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1489}}^1$

素因数の和:1837

約数の個数: 32

約数和(自身を含む): 45325800

約数和(自身を除く): 25254080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1489, 1685, 2696, 2978, 3370, 5956, 6740, 7445, 11912, 13480, 14890, 29780, 59560, 501793, 1003586, 2007172, 2508965, 4014344, 5017930, 10035860, 20071720]

約数ペア:

[(1, 20071720), (2, 10035860), (4, 5017930), (5, 4014344), (8, 2508965), (10, 2007172), (20, 1003586), (40, 501793), (337, 59560), (674, 29780), (1348, 14890), (1489, 13480), (1685, 11912), (2696, 7445), (2978, 6740), (3370, 5956)]