28071120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 320

約数和(自身を含む): 114278400

約数和(自身を除く): 86207280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 48, 49, 55, 56, 60, 62, 66, 70, 77, 80, 84, 88, 93, 98, 105, 110, 112, 120, 124, 132, 140, 147, 154, 155, 165, 168, 176, 186, 196, 210, 217, 220, 231, 240, 245, 248, 264, 280, 294, 308, 310, 330, 336, 341, 343, 372, 385, 392, 420, 434, 440, 462, 465, 490, 496, 528, 539, 560, 588, 616, 620, 651, 660, 682, 686, 735, 744, 770, 784, 840, 868, 880, 924, 930, 980, 1023, 1029, 1078, 1085, 1155, 1176, 1232, 1240, 1302, 1320, 1364, 1372, 1470, 1488, 1519, 1540, 1617, 1680, 1705, 1715, 1736, 1848, 1860, 1960, 2046, 2058, 2156, 2170, 2310, 2352, 2387, 2480, 2604, 2640, 2695, 2728, 2744, 2940, 3038, 3080, 3234, 3255, 3410, 3430, 3472, 3696, 3720, 3773, 3920, 4092, 4116, 4312, 4340, 4557, 4620, 4774, 5115, 5145, 5208, 5390, 5456, 5488, 5880, 6076, 6160, 6468, 6510, 6820, 6860, 7161, 7440, 7546, 7595, 8085, 8184, 8232, 8624, 8680, 9114, 9240, 9548, 10230, 10290, 10416, 10633, 10780, 11319, 11760, 11935, 12152, 12936, 13020, 13640, 13720, 14322, 15092, 15190, 16170, 16368, 16464, 16709, 17360, 18228, 18480, 18865, 19096, 20460, 20580, 21266, 21560, 22638, 22785, 23870, 24304, 25872, 26040, 27280, 27440, 28644, 30184, 30380, 31899, 32340, 33418, 35805, 36456, 37730, 38192, 40920, 41160, 42532, 43120, 45276, 45570, 47740, 50127, 52080, 53165, 56595, 57288, 60368, 60760, 63798, 64680, 66836, 71610, 72912, 75460, 81840, 82320, 83545, 85064, 90552, 91140, 95480, 100254, 106330, 113190, 114576, 116963, 121520, 127596, 129360, 133672, 143220, 150920, 159495, 167090, 170128, 181104, 182280, 190960, 200508, 212660, 226380, 233926, 250635, 255192, 267344, 286440, 301840, 318990, 334180, 350889, 364560, 401016, 425320, 452760, 467852, 501270, 510384, 572880, 584815, 637980, 668360, 701778, 802032, 850640, 905520, 935704, 1002540, 1169630, 1275960, 1336720, 1403556, 1754445, 1871408, 2005080, 2339260, 2551920, 2807112, 3508890, 4010160, 4678520, 5614224, 7017780, 9357040, 14035560, 28071120]

約数ペア:

[(1, 28071120), (2, 14035560), (3, 9357040), (4, 7017780), (5, 5614224), (6, 4678520), (7, 4010160), (8, 3508890), (10, 2807112), (11, 2551920), (12, 2339260), (14, 2005080), (15, 1871408), (16, 1754445), (20, 1403556), (21, 1336720), (22, 1275960), (24, 1169630), (28, 1002540), (30, 935704), (31, 905520), (33, 850640), (35, 802032), (40, 701778), (42, 668360), (44, 637980), (48, 584815), (49, 572880), (55, 510384), (56, 501270), (60, 467852), (62, 452760), (66, 425320), (70, 401016), (77, 364560), (80, 350889), (84, 334180), (88, 318990), (93, 301840), (98, 286440), (105, 267344), (110, 255192), (112, 250635), (120, 233926), (124, 226380), (132, 212660), (140, 200508), (147, 190960), (154, 182280), (155, 181104), (165, 170128), (168, 167090), (176, 159495), (186, 150920), (196, 143220), (210, 133672), (217, 129360), (220, 127596), (231, 121520), (240, 116963), (245, 114576), (248, 113190), (264, 106330), (280, 100254), (294, 95480), (308, 91140), (310, 90552), (330, 85064), (336, 83545), (341, 82320), (343, 81840), (372, 75460), (385, 72912), (392, 71610), (420, 66836), (434, 64680), (440, 63798), (462, 60760), (465, 60368), (490, 57288), (496, 56595), (528, 53165), (539, 52080), (560, 50127), (588, 47740), (616, 45570), (620, 45276), (651, 43120), (660, 42532), (682, 41160), (686, 40920), (735, 38192), (744, 37730), (770, 36456), (784, 35805), (840, 33418), (868, 32340), (880, 31899), (924, 30380), (930, 30184), (980, 28644), (1023, 27440), (1029, 27280), (1078, 26040), (1085, 25872), (1155, 24304), (1176, 23870), (1232, 22785), (1240, 22638), (1302, 21560), (1320, 21266), (1364, 20580), (1372, 20460), (1470, 19096), (1488, 18865), (1519, 18480), (1540, 18228), (1617, 17360), (1680, 16709), (1705, 16464), (1715, 16368), (1736, 16170), (1848, 15190), (1860, 15092), (1960, 14322), (2046, 13720), (2058, 13640), (2156, 13020), (2170, 12936), (2310, 12152), (2352, 11935), (2387, 11760), (2480, 11319), (2604, 10780), (2640, 10633), (2695, 10416), (2728, 10290), (2744, 10230), (2940, 9548), (3038, 9240), (3080, 9114), (3234, 8680), (3255, 8624), (3410, 8232), (3430, 8184), (3472, 8085), (3696, 7595), (3720, 7546), (3773, 7440), (3920, 7161), (4092, 6860), (4116, 6820), (4312, 6510), (4340, 6468), (4557, 6160), (4620, 6076), (4774, 5880), (5115, 5488), (5145, 5456), (5208, 5390)]