1640744518

素因数分解:

$2^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{269}}^1\times {\mathrm{571}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 2905016400

約数和(自身を除く): 1264271882

約数列:

[1, 2, 7, 14, 49, 98, 109, 218, 269, 538, 571, 763, 1142, 1526, 1883, 3766, 3997, 5341, 7994, 10682, 13181, 26362, 27979, 29321, 55958, 58642, 62239, 124478, 153599, 205247, 307198, 410494, 435673, 871346, 1075193, 1436729, 2150386, 2873458, 3049711, 6099422, 7526351, 15052702, 16742291, 33484582, 117196037, 234392074, 820372259, 1640744518]

約数ペア:

[(1, 1640744518), (2, 820372259), (7, 234392074), (14, 117196037), (49, 33484582), (98, 16742291), (109, 15052702), (218, 7526351), (269, 6099422), (538, 3049711), (571, 2873458), (763, 2150386), (1142, 1436729), (1526, 1075193), (1883, 871346), (3766, 435673), (3997, 410494), (5341, 307198), (7994, 205247), (10682, 153599), (13181, 124478), (26362, 62239), (27979, 58642), (29321, 55958)]