20872180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149087}}^1$

素因数の和:149103

約数の個数: 24

約数和(自身を含む): 50093568

約数和(自身を除く): 29221388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149087, 298174, 596348, 745435, 1043609, 1490870, 2087218, 2981740, 4174436, 5218045, 10436090, 20872180]

約数ペア:

[(1, 20872180), (2, 10436090), (4, 5218045), (5, 4174436), (7, 2981740), (10, 2087218), (14, 1490870), (20, 1043609), (28, 745435), (35, 596348), (70, 298174), (140, 149087)]