638443876

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1\times {\mathrm{1181}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 1310601600

約数和(自身を除く): 672157724

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 449, 602, 898, 1181, 1204, 1796, 2362, 3143, 4724, 6286, 8267, 12572, 16534, 19307, 33068, 38614, 50783, 77228, 101566, 135149, 203132, 270298, 355481, 530269, 540596, 710962, 1060538, 1421924, 2121076, 3711883, 7423766, 14847532, 22801567, 45603134, 91206268, 159610969, 319221938, 638443876]

約数ペア:

[(1, 638443876), (2, 319221938), (4, 159610969), (7, 91206268), (14, 45603134), (28, 22801567), (43, 14847532), (86, 7423766), (172, 3711883), (301, 2121076), (449, 1421924), (602, 1060538), (898, 710962), (1181, 540596), (1204, 530269), (1796, 355481), (2362, 270298), (3143, 203132), (4724, 135149), (6286, 101566), (8267, 77228), (12572, 50783), (16534, 38614), (19307, 33068)]