28258560

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 216

約数和(自身を含む): 107138304

約数和(自身を除く): 78879744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 223, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 446, 480, 495, 528, 576, 640, 660, 669, 704, 720, 768, 792, 880, 892, 960, 990, 1056, 1115, 1152, 1280, 1320, 1338, 1408, 1440, 1584, 1760, 1784, 1920, 1980, 2007, 2112, 2230, 2304, 2453, 2640, 2676, 2816, 2880, 3168, 3345, 3520, 3568, 3840, 3960, 4014, 4224, 4460, 4906, 5280, 5352, 5760, 6336, 6690, 7040, 7136, 7359, 7920, 8028, 8448, 8920, 9812, 10035, 10560, 10704, 11520, 12265, 12672, 13380, 14080, 14272, 14718, 15840, 16056, 17840, 19624, 20070, 21120, 21408, 22077, 24530, 25344, 26760, 28544, 29436, 31680, 32112, 35680, 36795, 39248, 40140, 42240, 42816, 44154, 49060, 53520, 57088, 58872, 63360, 64224, 71360, 73590, 78496, 80280, 85632, 88308, 98120, 107040, 110385, 117744, 126720, 128448, 142720, 147180, 156992, 160560, 171264, 176616, 196240, 214080, 220770, 235488, 256896, 285440, 294360, 313984, 321120, 353232, 392480, 428160, 441540, 470976, 513792, 588720, 627968, 642240, 706464, 784960, 856320, 883080, 941952, 1177440, 1284480, 1412928, 1569920, 1766160, 1883904, 2354880, 2568960, 2825856, 3139840, 3532320, 4709760, 5651712, 7064640, 9419520, 14129280, 28258560]

約数ペア:

[(1, 28258560), (2, 14129280), (3, 9419520), (4, 7064640), (5, 5651712), (6, 4709760), (8, 3532320), (9, 3139840), (10, 2825856), (11, 2568960), (12, 2354880), (15, 1883904), (16, 1766160), (18, 1569920), (20, 1412928), (22, 1284480), (24, 1177440), (30, 941952), (32, 883080), (33, 856320), (36, 784960), (40, 706464), (44, 642240), (45, 627968), (48, 588720), (55, 513792), (60, 470976), (64, 441540), (66, 428160), (72, 392480), (80, 353232), (88, 321120), (90, 313984), (96, 294360), (99, 285440), (110, 256896), (120, 235488), (128, 220770), (132, 214080), (144, 196240), (160, 176616), (165, 171264), (176, 160560), (180, 156992), (192, 147180), (198, 142720), (220, 128448), (223, 126720), (240, 117744), (256, 110385), (264, 107040), (288, 98120), (320, 88308), (330, 85632), (352, 80280), (360, 78496), (384, 73590), (396, 71360), (440, 64224), (446, 63360), (480, 58872), (495, 57088), (528, 53520), (576, 49060), (640, 44154), (660, 42816), (669, 42240), (704, 40140), (720, 39248), (768, 36795), (792, 35680), (880, 32112), (892, 31680), (960, 29436), (990, 28544), (1056, 26760), (1115, 25344), (1152, 24530), (1280, 22077), (1320, 21408), (1338, 21120), (1408, 20070), (1440, 19624), (1584, 17840), (1760, 16056), (1784, 15840), (1920, 14718), (1980, 14272), (2007, 14080), (2112, 13380), (2230, 12672), (2304, 12265), (2453, 11520), (2640, 10704), (2676, 10560), (2816, 10035), (2880, 9812), (3168, 8920), (3345, 8448), (3520, 8028), (3568, 7920), (3840, 7359), (3960, 7136), (4014, 7040), (4224, 6690), (4460, 6336), (4906, 5760), (5280, 5352)]