31806720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 216

約数和(自身を含む): 120530592

約数和(自身を除く): 88723872

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, 240, 251, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 502, 528, 576, 640, 660, 704, 720, 753, 768, 792, 880, 960, 990, 1004, 1056, 1152, 1255, 1280, 1320, 1408, 1440, 1506, 1584, 1760, 1920, 1980, 2008, 2112, 2259, 2304, 2510, 2640, 2761, 2816, 2880, 3012, 3168, 3520, 3765, 3840, 3960, 4016, 4224, 4518, 5020, 5280, 5522, 5760, 6024, 6336, 7040, 7530, 7920, 8032, 8283, 8448, 9036, 10040, 10560, 11044, 11295, 11520, 12048, 12672, 13805, 14080, 15060, 15840, 16064, 16566, 18072, 20080, 21120, 22088, 22590, 24096, 24849, 25344, 27610, 30120, 31680, 32128, 33132, 36144, 40160, 41415, 42240, 44176, 45180, 48192, 49698, 55220, 60240, 63360, 64256, 66264, 72288, 80320, 82830, 88352, 90360, 96384, 99396, 110440, 120480, 124245, 126720, 132528, 144576, 160640, 165660, 176704, 180720, 192768, 198792, 220880, 240960, 248490, 265056, 289152, 321280, 331320, 353408, 361440, 397584, 441760, 481920, 496980, 530112, 578304, 662640, 706816, 722880, 795168, 883520, 963840, 993960, 1060224, 1325280, 1445760, 1590336, 1767040, 1987920, 2120448, 2650560, 2891520, 3180672, 3534080, 3975840, 5301120, 6361344, 7951680, 10602240, 15903360, 31806720]

約数ペア:

[(1, 31806720), (2, 15903360), (3, 10602240), (4, 7951680), (5, 6361344), (6, 5301120), (8, 3975840), (9, 3534080), (10, 3180672), (11, 2891520), (12, 2650560), (15, 2120448), (16, 1987920), (18, 1767040), (20, 1590336), (22, 1445760), (24, 1325280), (30, 1060224), (32, 993960), (33, 963840), (36, 883520), (40, 795168), (44, 722880), (45, 706816), (48, 662640), (55, 578304), (60, 530112), (64, 496980), (66, 481920), (72, 441760), (80, 397584), (88, 361440), (90, 353408), (96, 331320), (99, 321280), (110, 289152), (120, 265056), (128, 248490), (132, 240960), (144, 220880), (160, 198792), (165, 192768), (176, 180720), (180, 176704), (192, 165660), (198, 160640), (220, 144576), (240, 132528), (251, 126720), (256, 124245), (264, 120480), (288, 110440), (320, 99396), (330, 96384), (352, 90360), (360, 88352), (384, 82830), (396, 80320), (440, 72288), (480, 66264), (495, 64256), (502, 63360), (528, 60240), (576, 55220), (640, 49698), (660, 48192), (704, 45180), (720, 44176), (753, 42240), (768, 41415), (792, 40160), (880, 36144), (960, 33132), (990, 32128), (1004, 31680), (1056, 30120), (1152, 27610), (1255, 25344), (1280, 24849), (1320, 24096), (1408, 22590), (1440, 22088), (1506, 21120), (1584, 20080), (1760, 18072), (1920, 16566), (1980, 16064), (2008, 15840), (2112, 15060), (2259, 14080), (2304, 13805), (2510, 12672), (2640, 12048), (2761, 11520), (2816, 11295), (2880, 11044), (3012, 10560), (3168, 10040), (3520, 9036), (3765, 8448), (3840, 8283), (3960, 8032), (4016, 7920), (4224, 7530), (4518, 7040), (5020, 6336), (5280, 6024), (5522, 5760)]