28498680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 192

約数和(自身を含む): 108725760

約数和(自身を除く): 80227080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 56, 60, 63, 70, 72, 84, 86, 90, 105, 120, 126, 129, 140, 168, 172, 180, 210, 215, 252, 258, 263, 280, 301, 315, 344, 360, 387, 420, 430, 504, 516, 526, 602, 630, 645, 774, 789, 840, 860, 903, 1032, 1052, 1204, 1260, 1290, 1315, 1505, 1548, 1578, 1720, 1806, 1841, 1935, 2104, 2367, 2408, 2520, 2580, 2630, 2709, 3010, 3096, 3156, 3612, 3682, 3870, 3945, 4515, 4734, 5160, 5260, 5418, 5523, 6020, 6312, 7224, 7364, 7740, 7890, 9030, 9205, 9468, 10520, 10836, 11046, 11309, 11835, 12040, 13545, 14728, 15480, 15780, 16569, 18060, 18410, 18936, 21672, 22092, 22618, 23670, 27090, 27615, 31560, 33138, 33927, 36120, 36820, 44184, 45236, 47340, 54180, 55230, 56545, 66276, 67854, 73640, 79163, 82845, 90472, 94680, 101781, 108360, 110460, 113090, 132552, 135708, 158326, 165690, 169635, 203562, 220920, 226180, 237489, 271416, 316652, 331380, 339270, 395815, 407124, 452360, 474978, 508905, 633304, 662760, 678540, 712467, 791630, 814248, 949956, 1017810, 1187445, 1357080, 1424934, 1583260, 1899912, 2035620, 2374890, 2849868, 3166520, 3562335, 4071240, 4749780, 5699736, 7124670, 9499560, 14249340, 28498680]

約数ペア:

[(1, 28498680), (2, 14249340), (3, 9499560), (4, 7124670), (5, 5699736), (6, 4749780), (7, 4071240), (8, 3562335), (9, 3166520), (10, 2849868), (12, 2374890), (14, 2035620), (15, 1899912), (18, 1583260), (20, 1424934), (21, 1357080), (24, 1187445), (28, 1017810), (30, 949956), (35, 814248), (36, 791630), (40, 712467), (42, 678540), (43, 662760), (45, 633304), (56, 508905), (60, 474978), (63, 452360), (70, 407124), (72, 395815), (84, 339270), (86, 331380), (90, 316652), (105, 271416), (120, 237489), (126, 226180), (129, 220920), (140, 203562), (168, 169635), (172, 165690), (180, 158326), (210, 135708), (215, 132552), (252, 113090), (258, 110460), (263, 108360), (280, 101781), (301, 94680), (315, 90472), (344, 82845), (360, 79163), (387, 73640), (420, 67854), (430, 66276), (504, 56545), (516, 55230), (526, 54180), (602, 47340), (630, 45236), (645, 44184), (774, 36820), (789, 36120), (840, 33927), (860, 33138), (903, 31560), (1032, 27615), (1052, 27090), (1204, 23670), (1260, 22618), (1290, 22092), (1315, 21672), (1505, 18936), (1548, 18410), (1578, 18060), (1720, 16569), (1806, 15780), (1841, 15480), (1935, 14728), (2104, 13545), (2367, 12040), (2408, 11835), (2520, 11309), (2580, 11046), (2630, 10836), (2709, 10520), (3010, 9468), (3096, 9205), (3156, 9030), (3612, 7890), (3682, 7740), (3870, 7364), (3945, 7224), (4515, 6312), (4734, 6020), (5160, 5523), (5260, 5418)]