19249820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{4987}}^1$

素因数の和:5189

約数の個数: 24

約数和(自身を含む): 40642224

約数和(自身を除く): 21392404

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 4987, 9974, 19948, 24935, 49870, 99740, 962491, 1924982, 3849964, 4812455, 9624910, 19249820]

約数ペア:

[(1, 19249820), (2, 9624910), (4, 4812455), (5, 3849964), (10, 1924982), (20, 962491), (193, 99740), (386, 49870), (772, 24935), (965, 19948), (1930, 9974), (3860, 4987)]