20459740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146141}}^1$

素因数の和:146157

約数の個数: 24

約数和(自身を含む): 49103712

約数和(自身を除く): 28643972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146141, 292282, 584564, 730705, 1022987, 1461410, 2045974, 2922820, 4091948, 5114935, 10229870, 20459740]

約数ペア:

[(1, 20459740), (2, 10229870), (4, 5114935), (5, 4091948), (7, 2922820), (10, 2045974), (14, 1461410), (20, 1022987), (28, 730705), (35, 584564), (70, 292282), (140, 146141)]