28109340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{3187}}^1$

素因数の和:3216

約数の個数: 108

約数和(自身を含む): 99216936

約数和(自身を除く): 71107596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 3187, 4410, 6374, 8820, 9561, 12748, 15935, 19122, 22309, 28683, 31870, 38244, 44618, 47805, 57366, 63740, 66927, 89236, 95610, 111545, 114732, 133854, 143415, 156163, 191220, 200781, 223090, 267708, 286830, 312326, 334635, 401562, 446180, 468489, 573660, 624652, 669270, 780815, 803124, 936978, 1003905, 1338540, 1405467, 1561630, 1873956, 2007810, 2342445, 2810934, 3123260, 4015620, 4684890, 5621868, 7027335, 9369780, 14054670, 28109340]

約数ペア:

[(1, 28109340), (2, 14054670), (3, 9369780), (4, 7027335), (5, 5621868), (6, 4684890), (7, 4015620), (9, 3123260), (10, 2810934), (12, 2342445), (14, 2007810), (15, 1873956), (18, 1561630), (20, 1405467), (21, 1338540), (28, 1003905), (30, 936978), (35, 803124), (36, 780815), (42, 669270), (45, 624652), (49, 573660), (60, 468489), (63, 446180), (70, 401562), (84, 334635), (90, 312326), (98, 286830), (105, 267708), (126, 223090), (140, 200781), (147, 191220), (180, 156163), (196, 143415), (210, 133854), (245, 114732), (252, 111545), (294, 95610), (315, 89236), (420, 66927), (441, 63740), (490, 57366), (588, 47805), (630, 44618), (735, 38244), (882, 31870), (980, 28683), (1260, 22309), (1470, 19122), (1764, 15935), (2205, 12748), (2940, 9561), (3187, 8820), (4410, 6374)]