28178640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5591}}^1$

素因数の和:5617

約数の個数: 120

約数和(自身を含む): 108171648

約数和(自身を除く): 79993008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5591, 11182, 16773, 22364, 27955, 33546, 39137, 44728, 50319, 55910, 67092, 78274, 83865, 89456, 100638, 111820, 117411, 134184, 156548, 167730, 195685, 201276, 223640, 234822, 251595, 268368, 313096, 335460, 352233, 391370, 402552, 447280, 469644, 503190, 587055, 626192, 670920, 704466, 782740, 805104, 939288, 1006380, 1174110, 1341840, 1408932, 1565480, 1761165, 1878576, 2012760, 2348220, 2817864, 3130960, 3522330, 4025520, 4696440, 5635728, 7044660, 9392880, 14089320, 28178640]

約数ペア:

[(1, 28178640), (2, 14089320), (3, 9392880), (4, 7044660), (5, 5635728), (6, 4696440), (7, 4025520), (8, 3522330), (9, 3130960), (10, 2817864), (12, 2348220), (14, 2012760), (15, 1878576), (16, 1761165), (18, 1565480), (20, 1408932), (21, 1341840), (24, 1174110), (28, 1006380), (30, 939288), (35, 805104), (36, 782740), (40, 704466), (42, 670920), (45, 626192), (48, 587055), (56, 503190), (60, 469644), (63, 447280), (70, 402552), (72, 391370), (80, 352233), (84, 335460), (90, 313096), (105, 268368), (112, 251595), (120, 234822), (126, 223640), (140, 201276), (144, 195685), (168, 167730), (180, 156548), (210, 134184), (240, 117411), (252, 111820), (280, 100638), (315, 89456), (336, 83865), (360, 78274), (420, 67092), (504, 55910), (560, 50319), (630, 44728), (720, 39137), (840, 33546), (1008, 27955), (1260, 22364), (1680, 16773), (2520, 11182), (5040, 5591)]