19871600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 56091648

約数和(自身を除く): 36220048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 47, 50, 56, 70, 80, 94, 100, 112, 140, 151, 175, 188, 200, 235, 280, 302, 329, 350, 376, 400, 470, 560, 604, 658, 700, 752, 755, 940, 1057, 1175, 1208, 1316, 1400, 1510, 1645, 1880, 2114, 2350, 2416, 2632, 2800, 3020, 3290, 3760, 3775, 4228, 4700, 5264, 5285, 6040, 6580, 7097, 7550, 8225, 8456, 9400, 10570, 12080, 13160, 14194, 15100, 16450, 16912, 18800, 21140, 26320, 26425, 28388, 30200, 32900, 35485, 42280, 49679, 52850, 56776, 60400, 65800, 70970, 84560, 99358, 105700, 113552, 131600, 141940, 177425, 198716, 211400, 248395, 283880, 354850, 397432, 422800, 496790, 567760, 709700, 794864, 993580, 1241975, 1419400, 1987160, 2483950, 2838800, 3974320, 4967900, 9935800, 19871600]

約数ペア:

[(1, 19871600), (2, 9935800), (4, 4967900), (5, 3974320), (7, 2838800), (8, 2483950), (10, 1987160), (14, 1419400), (16, 1241975), (20, 993580), (25, 794864), (28, 709700), (35, 567760), (40, 496790), (47, 422800), (50, 397432), (56, 354850), (70, 283880), (80, 248395), (94, 211400), (100, 198716), (112, 177425), (140, 141940), (151, 131600), (175, 113552), (188, 105700), (200, 99358), (235, 84560), (280, 70970), (302, 65800), (329, 60400), (350, 56776), (376, 52850), (400, 49679), (470, 42280), (560, 35485), (604, 32900), (658, 30200), (700, 28388), (752, 26425), (755, 26320), (940, 21140), (1057, 18800), (1175, 16912), (1208, 16450), (1316, 15100), (1400, 14194), (1510, 13160), (1645, 12080), (1880, 10570), (2114, 9400), (2350, 8456), (2416, 8225), (2632, 7550), (2800, 7097), (3020, 6580), (3290, 6040), (3760, 5285), (3775, 5264), (4228, 4700)]