20117780

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1171}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 42332640

約数和(自身を除く): 22214860

約数列:

[1, 2, 4, 5, 10, 20, 859, 1171, 1718, 2342, 3436, 4295, 4684, 5855, 8590, 11710, 17180, 23420, 1005889, 2011778, 4023556, 5029445, 10058890, 20117780]

約数ペア:

[(1, 20117780), (2, 10058890), (4, 5029445), (5, 4023556), (10, 2011778), (20, 1005889), (859, 23420), (1171, 17180), (1718, 11710), (2342, 8590), (3436, 5855), (4295, 4684)]