80110980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{719}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 243734400

約数和(自身を除く): 163623420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 619, 719, 1238, 1438, 1857, 2157, 2476, 2876, 3095, 3595, 3714, 4314, 5571, 6190, 6471, 7190, 7428, 8628, 9285, 10785, 11142, 12380, 12942, 14380, 18570, 21570, 22284, 25884, 27855, 32355, 37140, 43140, 55710, 64710, 111420, 129420, 445061, 890122, 1335183, 1780244, 2225305, 2670366, 4005549, 4450610, 5340732, 6675915, 8011098, 8901220, 13351830, 16022196, 20027745, 26703660, 40055490, 80110980]

約数ペア:

[(1, 80110980), (2, 40055490), (3, 26703660), (4, 20027745), (5, 16022196), (6, 13351830), (9, 8901220), (10, 8011098), (12, 6675915), (15, 5340732), (18, 4450610), (20, 4005549), (30, 2670366), (36, 2225305), (45, 1780244), (60, 1335183), (90, 890122), (180, 445061), (619, 129420), (719, 111420), (1238, 64710), (1438, 55710), (1857, 43140), (2157, 37140), (2476, 32355), (2876, 27855), (3095, 25884), (3595, 22284), (3714, 21570), (4314, 18570), (5571, 14380), (6190, 12942), (6471, 12380), (7190, 11142), (7428, 10785), (8628, 9285)]