16722820

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1031}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 35195328

約数和(自身を除く): 18472508

約数列:

[1, 2, 4, 5, 10, 20, 811, 1031, 1622, 2062, 3244, 4055, 4124, 5155, 8110, 10310, 16220, 20620, 836141, 1672282, 3344564, 4180705, 8361410, 16722820]

約数ペア:

[(1, 16722820), (2, 8361410), (4, 4180705), (5, 3344564), (10, 1672282), (20, 836141), (811, 20620), (1031, 16220), (1622, 10310), (2062, 8110), (3244, 5155), (4055, 4124)]