640273088

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109937}}^1$

素因数の和:109969

約数の個数: 56

約数和(自身を含む): 1563758112

約数和(自身を除く): 923485024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 5824, 109937, 219874, 439748, 769559, 879496, 1429181, 1539118, 1758992, 2858362, 3078236, 3517984, 5716724, 6156472, 7035968, 10004267, 11433448, 12312944, 20008534, 22866896, 24625888, 40017068, 45733792, 49251776, 80034136, 91467584, 160068272, 320136544, 640273088]

約数ペア:

[(1, 640273088), (2, 320136544), (4, 160068272), (7, 91467584), (8, 80034136), (13, 49251776), (14, 45733792), (16, 40017068), (26, 24625888), (28, 22866896), (32, 20008534), (52, 12312944), (56, 11433448), (64, 10004267), (91, 7035968), (104, 6156472), (112, 5716724), (182, 3517984), (208, 3078236), (224, 2858362), (364, 1758992), (416, 1539118), (448, 1429181), (728, 879496), (832, 769559), (1456, 439748), (2912, 219874), (5824, 109937)]