263554480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2389}}^1$

素因数の和:2606

約数の個数: 80

約数和(自身を含む): 704151360

約数和(自身を除く): 440596880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1970, 2389, 2758, 3152, 3940, 4778, 5516, 6895, 7880, 9556, 11032, 11945, 13790, 15760, 16723, 19112, 22064, 23890, 27580, 33446, 38224, 47780, 55160, 66892, 83615, 95560, 110320, 133784, 167230, 191120, 267568, 334460, 470633, 668920, 941266, 1337840, 1882532, 2353165, 3294431, 3765064, 4706330, 6588862, 7530128, 9412660, 13177724, 16472155, 18825320, 26355448, 32944310, 37650640, 52710896, 65888620, 131777240, 263554480]

約数ペア:

[(1, 263554480), (2, 131777240), (4, 65888620), (5, 52710896), (7, 37650640), (8, 32944310), (10, 26355448), (14, 18825320), (16, 16472155), (20, 13177724), (28, 9412660), (35, 7530128), (40, 6588862), (56, 4706330), (70, 3765064), (80, 3294431), (112, 2353165), (140, 1882532), (197, 1337840), (280, 941266), (394, 668920), (560, 470633), (788, 334460), (985, 267568), (1379, 191120), (1576, 167230), (1970, 133784), (2389, 110320), (2758, 95560), (3152, 83615), (3940, 66892), (4778, 55160), (5516, 47780), (6895, 38224), (7880, 33446), (9556, 27580), (11032, 23890), (11945, 22064), (13790, 19112), (15760, 16723)]