77887620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 250810560

約数和(自身を除く): 172922940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 43, 45, 58, 60, 86, 87, 90, 116, 129, 145, 172, 174, 180, 215, 258, 261, 290, 347, 348, 387, 430, 435, 516, 522, 580, 645, 694, 774, 860, 870, 1041, 1044, 1247, 1290, 1305, 1388, 1548, 1735, 1740, 1935, 2082, 2494, 2580, 2610, 3123, 3470, 3741, 3870, 4164, 4988, 5205, 5220, 6235, 6246, 6940, 7482, 7740, 10063, 10410, 11223, 12470, 12492, 14921, 14964, 15615, 18705, 20126, 20820, 22446, 24940, 29842, 30189, 31230, 37410, 40252, 44763, 44892, 50315, 56115, 59684, 60378, 62460, 74605, 74820, 89526, 90567, 100630, 112230, 120756, 134289, 149210, 150945, 179052, 181134, 201260, 223815, 224460, 268578, 298420, 301890, 362268, 432709, 447630, 452835, 537156, 603780, 671445, 865418, 895260, 905670, 1298127, 1342890, 1730836, 1811340, 2163545, 2596254, 2685780, 3894381, 4327090, 5192508, 6490635, 7788762, 8654180, 12981270, 15577524, 19471905, 25962540, 38943810, 77887620]

約数ペア:

[(1, 77887620), (2, 38943810), (3, 25962540), (4, 19471905), (5, 15577524), (6, 12981270), (9, 8654180), (10, 7788762), (12, 6490635), (15, 5192508), (18, 4327090), (20, 3894381), (29, 2685780), (30, 2596254), (36, 2163545), (43, 1811340), (45, 1730836), (58, 1342890), (60, 1298127), (86, 905670), (87, 895260), (90, 865418), (116, 671445), (129, 603780), (145, 537156), (172, 452835), (174, 447630), (180, 432709), (215, 362268), (258, 301890), (261, 298420), (290, 268578), (347, 224460), (348, 223815), (387, 201260), (430, 181134), (435, 179052), (516, 150945), (522, 149210), (580, 134289), (645, 120756), (694, 112230), (774, 100630), (860, 90567), (870, 89526), (1041, 74820), (1044, 74605), (1247, 62460), (1290, 60378), (1305, 59684), (1388, 56115), (1548, 50315), (1735, 44892), (1740, 44763), (1935, 40252), (2082, 37410), (2494, 31230), (2580, 30189), (2610, 29842), (3123, 24940), (3470, 22446), (3741, 20820), (3870, 20126), (4164, 18705), (4988, 15615), (5205, 14964), (5220, 14921), (6235, 12492), (6246, 12470), (6940, 11223), (7482, 10410), (7740, 10063)]