28321920

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:188

約数の個数: 256

約数和(自身を含む): 110160000

約数和(自身を除く): 81838080

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, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 128, 132, 135, 144, 149, 160, 165, 176, 180, 192, 198, 216, 220, 240, 264, 270, 288, 297, 298, 320, 330, 352, 360, 384, 396, 432, 440, 447, 480, 495, 528, 540, 576, 594, 596, 640, 660, 704, 720, 745, 792, 864, 880, 894, 960, 990, 1056, 1080, 1152, 1188, 1192, 1320, 1341, 1408, 1440, 1485, 1490, 1584, 1639, 1728, 1760, 1788, 1920, 1980, 2112, 2160, 2235, 2376, 2384, 2640, 2682, 2880, 2970, 2980, 3168, 3278, 3456, 3520, 3576, 3960, 4023, 4224, 4320, 4470, 4752, 4768, 4917, 5280, 5364, 5760, 5940, 5960, 6336, 6556, 6705, 7040, 7152, 7920, 8046, 8195, 8640, 8940, 9504, 9536, 9834, 10560, 10728, 11880, 11920, 12672, 13112, 13410, 14304, 14751, 15840, 16092, 16390, 17280, 17880, 19008, 19072, 19668, 20115, 21120, 21456, 23760, 23840, 24585, 26224, 26820, 28608, 29502, 31680, 32184, 32780, 35760, 38016, 39336, 40230, 42912, 44253, 47520, 47680, 49170, 52448, 53640, 57216, 59004, 63360, 64368, 65560, 71520, 73755, 78672, 80460, 85824, 88506, 95040, 95360, 98340, 104896, 107280, 118008, 128736, 131120, 143040, 147510, 157344, 160920, 171648, 177012, 190080, 196680, 209792, 214560, 221265, 236016, 257472, 262240, 286080, 295020, 314688, 321840, 354024, 393360, 429120, 442530, 472032, 514944, 524480, 590040, 629376, 643680, 708048, 786720, 858240, 885060, 944064, 1048960, 1180080, 1287360, 1416096, 1573440, 1770120, 1888128, 2360160, 2574720, 2832192, 3146880, 3540240, 4720320, 5664384, 7080480, 9440640, 14160960, 28321920]

約数ペア:

[(1, 28321920), (2, 14160960), (3, 9440640), (4, 7080480), (5, 5664384), (6, 4720320), (8, 3540240), (9, 3146880), (10, 2832192), (11, 2574720), (12, 2360160), (15, 1888128), (16, 1770120), (18, 1573440), (20, 1416096), (22, 1287360), (24, 1180080), (27, 1048960), (30, 944064), (32, 885060), (33, 858240), (36, 786720), (40, 708048), (44, 643680), (45, 629376), (48, 590040), (54, 524480), (55, 514944), (60, 472032), (64, 442530), (66, 429120), (72, 393360), (80, 354024), (88, 321840), (90, 314688), (96, 295020), (99, 286080), (108, 262240), (110, 257472), (120, 236016), (128, 221265), (132, 214560), (135, 209792), (144, 196680), (149, 190080), (160, 177012), (165, 171648), (176, 160920), (180, 157344), (192, 147510), (198, 143040), (216, 131120), (220, 128736), (240, 118008), (264, 107280), (270, 104896), (288, 98340), (297, 95360), (298, 95040), (320, 88506), (330, 85824), (352, 80460), (360, 78672), (384, 73755), (396, 71520), (432, 65560), (440, 64368), (447, 63360), (480, 59004), (495, 57216), (528, 53640), (540, 52448), (576, 49170), (594, 47680), (596, 47520), (640, 44253), (660, 42912), (704, 40230), (720, 39336), (745, 38016), (792, 35760), (864, 32780), (880, 32184), (894, 31680), (960, 29502), (990, 28608), (1056, 26820), (1080, 26224), (1152, 24585), (1188, 23840), (1192, 23760), (1320, 21456), (1341, 21120), (1408, 20115), (1440, 19668), (1485, 19072), (1490, 19008), (1584, 17880), (1639, 17280), (1728, 16390), (1760, 16092), (1788, 15840), (1920, 14751), (1980, 14304), (2112, 13410), (2160, 13112), (2235, 12672), (2376, 11920), (2384, 11880), (2640, 10728), (2682, 10560), (2880, 9834), (2970, 9536), (2980, 9504), (3168, 8940), (3278, 8640), (3456, 8195), (3520, 8046), (3576, 7920), (3960, 7152), (4023, 7040), (4224, 6705), (4320, 6556), (4470, 6336), (4752, 5960), (4768, 5940), (4917, 5760), (5280, 5364)]