28131840

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 320

約数和(自身を含む): 111957120

約数和(自身を除く): 83825280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 37, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 74, 80, 88, 90, 96, 99, 108, 110, 111, 120, 128, 132, 135, 144, 148, 160, 165, 176, 180, 185, 192, 198, 216, 220, 222, 240, 256, 264, 270, 288, 296, 297, 320, 330, 333, 352, 360, 370, 384, 396, 407, 432, 440, 444, 480, 495, 512, 528, 540, 555, 576, 592, 594, 640, 660, 666, 704, 720, 740, 768, 792, 814, 864, 880, 888, 960, 990, 999, 1056, 1080, 1110, 1152, 1184, 1188, 1221, 1280, 1320, 1332, 1408, 1440, 1480, 1485, 1536, 1584, 1628, 1665, 1728, 1760, 1776, 1920, 1980, 1998, 2035, 2112, 2160, 2220, 2304, 2368, 2376, 2442, 2560, 2640, 2664, 2816, 2880, 2960, 2970, 3168, 3256, 3330, 3456, 3520, 3552, 3663, 3840, 3960, 3996, 4070, 4224, 4320, 4440, 4608, 4736, 4752, 4884, 4995, 5280, 5328, 5632, 5760, 5920, 5940, 6105, 6336, 6512, 6660, 6912, 7040, 7104, 7326, 7680, 7920, 7992, 8140, 8448, 8640, 8880, 9472, 9504, 9768, 9990, 10560, 10656, 10989, 11520, 11840, 11880, 12210, 12672, 13024, 13320, 13824, 14080, 14208, 14652, 15840, 15984, 16280, 16896, 17280, 17760, 18315, 18944, 19008, 19536, 19980, 21120, 21312, 21978, 23040, 23680, 23760, 24420, 25344, 26048, 26640, 28160, 28416, 29304, 31680, 31968, 32560, 34560, 35520, 36630, 38016, 39072, 39960, 42240, 42624, 43956, 47360, 47520, 48840, 50688, 52096, 53280, 54945, 56832, 58608, 63360, 63936, 65120, 69120, 71040, 73260, 76032, 78144, 79920, 84480, 85248, 87912, 94720, 95040, 97680, 104192, 106560, 109890, 117216, 126720, 127872, 130240, 142080, 146520, 152064, 156288, 159840, 170496, 175824, 190080, 195360, 208384, 213120, 219780, 234432, 253440, 255744, 260480, 284160, 293040, 312576, 319680, 351648, 380160, 390720, 426240, 439560, 468864, 511488, 520960, 586080, 625152, 639360, 703296, 760320, 781440, 852480, 879120, 937728, 1041920, 1172160, 1278720, 1406592, 1562880, 1758240, 1875456, 2344320, 2557440, 2813184, 3125760, 3516480, 4688640, 5626368, 7032960, 9377280, 14065920, 28131840]

約数ペア:

[(1, 28131840), (2, 14065920), (3, 9377280), (4, 7032960), (5, 5626368), (6, 4688640), (8, 3516480), (9, 3125760), (10, 2813184), (11, 2557440), (12, 2344320), (15, 1875456), (16, 1758240), (18, 1562880), (20, 1406592), (22, 1278720), (24, 1172160), (27, 1041920), (30, 937728), (32, 879120), (33, 852480), (36, 781440), (37, 760320), (40, 703296), (44, 639360), (45, 625152), (48, 586080), (54, 520960), (55, 511488), (60, 468864), (64, 439560), (66, 426240), (72, 390720), (74, 380160), (80, 351648), (88, 319680), (90, 312576), (96, 293040), (99, 284160), (108, 260480), (110, 255744), (111, 253440), (120, 234432), (128, 219780), (132, 213120), (135, 208384), (144, 195360), (148, 190080), (160, 175824), (165, 170496), (176, 159840), (180, 156288), (185, 152064), (192, 146520), (198, 142080), (216, 130240), (220, 127872), (222, 126720), (240, 117216), (256, 109890), (264, 106560), (270, 104192), (288, 97680), (296, 95040), (297, 94720), (320, 87912), (330, 85248), (333, 84480), (352, 79920), (360, 78144), (370, 76032), (384, 73260), (396, 71040), (407, 69120), (432, 65120), (440, 63936), (444, 63360), (480, 58608), (495, 56832), (512, 54945), (528, 53280), (540, 52096), (555, 50688), (576, 48840), (592, 47520), (594, 47360), (640, 43956), (660, 42624), (666, 42240), (704, 39960), (720, 39072), (740, 38016), (768, 36630), (792, 35520), (814, 34560), (864, 32560), (880, 31968), (888, 31680), (960, 29304), (990, 28416), (999, 28160), (1056, 26640), (1080, 26048), (1110, 25344), (1152, 24420), (1184, 23760), (1188, 23680), (1221, 23040), (1280, 21978), (1320, 21312), (1332, 21120), (1408, 19980), (1440, 19536), (1480, 19008), (1485, 18944), (1536, 18315), (1584, 17760), (1628, 17280), (1665, 16896), (1728, 16280), (1760, 15984), (1776, 15840), (1920, 14652), (1980, 14208), (1998, 14080), (2035, 13824), (2112, 13320), (2160, 13024), (2220, 12672), (2304, 12210), (2368, 11880), (2376, 11840), (2442, 11520), (2560, 10989), (2640, 10656), (2664, 10560), (2816, 9990), (2880, 9768), (2960, 9504), (2970, 9472), (3168, 8880), (3256, 8640), (3330, 8448), (3456, 8140), (3520, 7992), (3552, 7920), (3663, 7680), (3840, 7326), (3960, 7104), (3996, 7040), (4070, 6912), (4224, 6660), (4320, 6512), (4440, 6336), (4608, 6105), (4736, 5940), (4752, 5920), (4884, 5760), (4995, 5632), (5280, 5328)]