18878740

素因数分解:

$2^2\times 5^1\times {\mathrm{337}}^1\times {\mathrm{2801}}^1$

素因数の和:3147

約数の個数: 24

約数和(自身を含む): 39777192

約数和(自身を除く): 20898452

約数列:

[1, 2, 4, 5, 10, 20, 337, 674, 1348, 1685, 2801, 3370, 5602, 6740, 11204, 14005, 28010, 56020, 943937, 1887874, 3775748, 4719685, 9439370, 18878740]

約数ペア:

[(1, 18878740), (2, 9439370), (4, 4719685), (5, 3775748), (10, 1887874), (20, 943937), (337, 56020), (674, 28010), (1348, 14005), (1685, 11204), (2801, 6740), (3370, 5602)]