20178027068

素因数分解:

$2^2\times {\mathrm{257}}^1\times {\mathrm{3947}}^1\times {\mathrm{4973}}^1$

素因数の和:9181

約数の個数: 24

約数和(自身を含む): 35465057712

約数和(自身を除く): 15287030644

約数列:

[1, 2, 4, 257, 514, 1028, 3947, 4973, 7894, 9946, 15788, 19892, 1014379, 1278061, 2028758, 2556122, 4057516, 5112244, 19628431, 39256862, 78513724, 5044506767, 10089013534, 20178027068]

約数ペア:

[(1, 20178027068), (2, 10089013534), (4, 5044506767), (257, 78513724), (514, 39256862), (1028, 19628431), (3947, 5112244), (4973, 4057516), (7894, 2556122), (9946, 2028758), (15788, 1278061), (19892, 1014379)]