20918822400

素因数分解:

$2^9\times 3^3\times 5^2\times 7^1\times {\mathrm{8647}}^1$

素因数の和:8691

約数の個数: 480

約数和(自身を含む): 87761287680

約数和(自身を除く): 66842465280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 64, 70, 72, 75, 80, 84, 90, 96, 100, 105, 108, 112, 120, 126, 128, 135, 140, 144, 150, 160, 168, 175, 180, 189, 192, 200, 210, 216, 224, 225, 240, 252, 256, 270, 280, 288, 300, 315, 320, 336, 350, 360, 378, 384, 400, 420, 432, 448, 450, 480, 504, 512, 525, 540, 560, 576, 600, 630, 640, 672, 675, 700, 720, 756, 768, 800, 840, 864, 896, 900, 945, 960, 1008, 1050, 1080, 1120, 1152, 1200, 1260, 1280, 1344, 1350, 1400, 1440, 1512, 1536, 1575, 1600, 1680, 1728, 1792, 1800, 1890, 1920, 2016, 2100, 2160, 2240, 2304, 2400, 2520, 2560, 2688, 2700, 2800, 2880, 3024, 3150, 3200, 3360, 3456, 3584, 3600, 3780, 3840, 4032, 4200, 4320, 4480, 4608, 4725, 4800, 5040, 5376, 5400, 5600, 5760, 6048, 6300, 6400, 6720, 6912, 7200, 7560, 7680, 8064, 8400, 8640, 8647, 8960, 9450, 9600, 10080, 10752, 10800, 11200, 11520, 12096, 12600, 12800, 13440, 13824, 14400, 15120, 16128, 16800, 17280, 17294, 17920, 18900, 19200, 20160, 21600, 22400, 23040, 24192, 25200, 25941, 26880, 28800, 30240, 32256, 33600, 34560, 34588, 37800, 38400, 40320, 43200, 43235, 44800, 48384, 50400, 51882, 53760, 57600, 60480, 60529, 67200, 69120, 69176, 75600, 77823, 80640, 86400, 86470, 89600, 96768, 100800, 103764, 115200, 120960, 121058, 129705, 134400, 138352, 151200, 155646, 161280, 172800, 172940, 181587, 201600, 207528, 216175, 233469, 241920, 242116, 259410, 268800, 276704, 302400, 302645, 311292, 345600, 345880, 363174, 389115, 403200, 415056, 432350, 466938, 483840, 484232, 518820, 544761, 553408, 604800, 605290, 622584, 648525, 691760, 726348, 778230, 806400, 830112, 864700, 907935, 933876, 968464, 1037640, 1089522, 1106816, 1167345, 1209600, 1210580, 1245168, 1297050, 1383520, 1452696, 1513225, 1556460, 1634283, 1660224, 1729400, 1815870, 1867752, 1936928, 1945575, 2075280, 2179044, 2213632, 2334690, 2419200, 2421160, 2490336, 2594100, 2723805, 2767040, 2905392, 3026450, 3112920, 3268566, 3320448, 3458800, 3631740, 3735504, 3873856, 3891150, 4150560, 4358088, 4427264, 4539675, 4669380, 4842320, 4980672, 5188200, 5447610, 5534080, 5810784, 5836725, 6052900, 6225840, 6537132, 6640896, 6917600, 7263480, 7471008, 7747712, 7782300, 8171415, 8301120, 8716176, 9079350, 9338760, 9684640, 9961344, 10376400, 10895220, 11068160, 11621568, 11673450, 12105800, 12451680, 13074264, 13281792, 13619025, 13835200, 14526960, 14942016, 15495424, 15564600, 16342830, 16602240, 17432352, 18158700, 18677520, 19369280, 19922688, 20752800, 21790440, 22136320, 23243136, 23346900, 24211600, 24903360, 26148528, 27238050, 27670400, 29053920, 29884032, 30990848, 31129200, 32685660, 33204480, 34864704, 36317400, 37355040, 38738560, 39845376, 40857075, 41505600, 43580880, 46486272, 46693800, 48423200, 49806720, 52297056, 54476100, 55340800, 58107840, 59768064, 62258400, 65371320, 66408960, 69729408, 72634800, 74710080, 77477120, 81714150, 83011200, 87161760, 92972544, 93387600, 96846400, 99613440, 104594112, 108952200, 110681600, 116215680, 119536128, 124516800, 130742640, 139458816, 145269600, 149420160, 154954240, 163428300, 166022400, 174323520, 186775200, 193692800, 199226880, 209188224, 217904400, 232431360, 249033600, 261485280, 278917632, 290539200, 298840320, 326856600, 332044800, 348647040, 373550400, 387385600, 418376448, 435808800, 464862720, 498067200, 522970560, 581078400, 597680640, 653713200, 697294080, 747100800, 774771200, 836752896, 871617600, 996134400, 1045941120, 1162156800, 1307426400, 1394588160, 1494201600, 1743235200, 2091882240, 2324313600, 2614852800, 2988403200, 3486470400, 4183764480, 5229705600, 6972940800, 10459411200, 20918822400]

約数ペア:

[(1, 20918822400), (2, 10459411200), (3, 6972940800), (4, 5229705600), (5, 4183764480), (6, 3486470400), (7, 2988403200), (8, 2614852800), (9, 2324313600), (10, 2091882240), (12, 1743235200), (14, 1494201600), (15, 1394588160), (16, 1307426400), (18, 1162156800), (20, 1045941120), (21, 996134400), (24, 871617600), (25, 836752896), (27, 774771200), (28, 747100800), (30, 697294080), (32, 653713200), (35, 597680640), (36, 581078400), (40, 522970560), (42, 498067200), (45, 464862720), (48, 435808800), (50, 418376448), (54, 387385600), (56, 373550400), (60, 348647040), (63, 332044800), (64, 326856600), (70, 298840320), (72, 290539200), (75, 278917632), (80, 261485280), (84, 249033600), (90, 232431360), (96, 217904400), (100, 209188224), (105, 199226880), (108, 193692800), (112, 186775200), (120, 174323520), (126, 166022400), (128, 163428300), (135, 154954240), (140, 149420160), (144, 145269600), (150, 139458816), (160, 130742640), (168, 124516800), (175, 119536128), (180, 116215680), (189, 110681600), (192, 108952200), (200, 104594112), (210, 99613440), (216, 96846400), (224, 93387600), (225, 92972544), (240, 87161760), (252, 83011200), (256, 81714150), (270, 77477120), (280, 74710080), (288, 72634800), (300, 69729408), (315, 66408960), (320, 65371320), (336, 62258400), (350, 59768064), (360, 58107840), (378, 55340800), (384, 54476100), (400, 52297056), (420, 49806720), (432, 48423200), (448, 46693800), (450, 46486272), (480, 43580880), (504, 41505600), (512, 40857075), (525, 39845376), (540, 38738560), (560, 37355040), (576, 36317400), (600, 34864704), (630, 33204480), (640, 32685660), (672, 31129200), (675, 30990848), (700, 29884032), (720, 29053920), (756, 27670400), (768, 27238050), (800, 26148528), (840, 24903360), (864, 24211600), (896, 23346900), (900, 23243136), (945, 22136320), (960, 21790440), (1008, 20752800), (1050, 19922688), (1080, 19369280), (1120, 18677520), (1152, 18158700), (1200, 17432352), (1260, 16602240), (1280, 16342830), (1344, 15564600), (1350, 15495424), (1400, 14942016), (1440, 14526960), (1512, 13835200), (1536, 13619025), (1575, 13281792), (1600, 13074264), (1680, 12451680), (1728, 12105800), (1792, 11673450), (1800, 11621568), (1890, 11068160), (1920, 10895220), (2016, 10376400), (2100, 9961344), (2160, 9684640), (2240, 9338760), (2304, 9079350), (2400, 8716176), (2520, 8301120), (2560, 8171415), (2688, 7782300), (2700, 7747712), (2800, 7471008), (2880, 7263480), (3024, 6917600), (3150, 6640896), (3200, 6537132), (3360, 6225840), (3456, 6052900), (3584, 5836725), (3600, 5810784), (3780, 5534080), (3840, 5447610), (4032, 5188200), (4200, 4980672), (4320, 4842320), (4480, 4669380), (4608, 4539675), (4725, 4427264), (4800, 4358088), (5040, 4150560), (5376, 3891150), (5400, 3873856), (5600, 3735504), (5760, 3631740), (6048, 3458800), (6300, 3320448), (6400, 3268566), (6720, 3112920), (6912, 3026450), (7200, 2905392), (7560, 2767040), (7680, 2723805), (8064, 2594100), (8400, 2490336), (8640, 2421160), (8647, 2419200), (8960, 2334690), (9450, 2213632), (9600, 2179044), (10080, 2075280), (10752, 1945575), (10800, 1936928), (11200, 1867752), (11520, 1815870), (12096, 1729400), (12600, 1660224), (12800, 1634283), (13440, 1556460), (13824, 1513225), (14400, 1452696), (15120, 1383520), (16128, 1297050), (16800, 1245168), (17280, 1210580), (17294, 1209600), (17920, 1167345), (18900, 1106816), (19200, 1089522), (20160, 1037640), (21600, 968464), (22400, 933876), (23040, 907935), (24192, 864700), (25200, 830112), (25941, 806400), (26880, 778230), (28800, 726348), (30240, 691760), (32256, 648525), (33600, 622584), (34560, 605290), (34588, 604800), (37800, 553408), (38400, 544761), (40320, 518820), (43200, 484232), (43235, 483840), (44800, 466938), (48384, 432350), (50400, 415056), (51882, 403200), (53760, 389115), (57600, 363174), (60480, 345880), (60529, 345600), (67200, 311292), (69120, 302645), (69176, 302400), (75600, 276704), (77823, 268800), (80640, 259410), (86400, 242116), (86470, 241920), (89600, 233469), (96768, 216175), (100800, 207528), (103764, 201600), (115200, 181587), (120960, 172940), (121058, 172800), (129705, 161280), (134400, 155646), (138352, 151200)]