1991880960

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1253

約数の個数: 288

約数和(自身を含む): 6993423360

約数和(自身を除く): 5001542400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 46, 48, 57, 60, 64, 69, 76, 80, 92, 95, 96, 114, 115, 120, 128, 138, 152, 160, 184, 190, 192, 228, 230, 240, 256, 276, 285, 304, 320, 345, 368, 380, 384, 437, 456, 460, 480, 552, 570, 608, 640, 690, 736, 760, 768, 874, 912, 920, 960, 1104, 1140, 1187, 1216, 1280, 1311, 1380, 1472, 1520, 1748, 1824, 1840, 1920, 2185, 2208, 2280, 2374, 2432, 2622, 2760, 2944, 3040, 3496, 3561, 3648, 3680, 3840, 4370, 4416, 4560, 4748, 4864, 5244, 5520, 5888, 5935, 6080, 6555, 6992, 7122, 7296, 7360, 8740, 8832, 9120, 9496, 10488, 11040, 11870, 12160, 13110, 13984, 14244, 14592, 14720, 17480, 17664, 17805, 18240, 18992, 20976, 22080, 22553, 23740, 24320, 26220, 27301, 27968, 28488, 29440, 34960, 35610, 36480, 37984, 41952, 44160, 45106, 47480, 52440, 54602, 55936, 56976, 67659, 69920, 71220, 72960, 75968, 81903, 83904, 88320, 90212, 94960, 104880, 109204, 111872, 112765, 113952, 135318, 136505, 139840, 142440, 151936, 163806, 167808, 180424, 189920, 209760, 218408, 225530, 227904, 270636, 273010, 279680, 284880, 303872, 327612, 335616, 338295, 360848, 379840, 409515, 419520, 436816, 451060, 455808, 518719, 541272, 546020, 559360, 569760, 655224, 676590, 721696, 759680, 819030, 839040, 873632, 902120, 911616, 1037438, 1082544, 1092040, 1139520, 1310448, 1353180, 1443392, 1519360, 1556157, 1638060, 1678080, 1747264, 1804240, 2074876, 2165088, 2184080, 2279040, 2593595, 2620896, 2706360, 2886784, 3112314, 3276120, 3494528, 3608480, 4149752, 4330176, 4368160, 4558080, 5187190, 5241792, 5412720, 5773568, 6224628, 6552240, 6989056, 7216960, 7780785, 8299504, 8660352, 8736320, 10374380, 10483584, 10825440, 12449256, 13104480, 14433920, 15561570, 16599008, 17320704, 17472640, 20748760, 20967168, 21650880, 24898512, 26208960, 28867840, 31123140, 33198016, 34945280, 41497520, 43301760, 49797024, 52417920, 62246280, 66396032, 82995040, 86603520, 99594048, 104835840, 124492560, 132792064, 165990080, 199188096, 248985120, 331980160, 398376192, 497970240, 663960320, 995940480, 1991880960]

約数ペア:

[(1, 1991880960), (2, 995940480), (3, 663960320), (4, 497970240), (5, 398376192), (6, 331980160), (8, 248985120), (10, 199188096), (12, 165990080), (15, 132792064), (16, 124492560), (19, 104835840), (20, 99594048), (23, 86603520), (24, 82995040), (30, 66396032), (32, 62246280), (38, 52417920), (40, 49797024), (46, 43301760), (48, 41497520), (57, 34945280), (60, 33198016), (64, 31123140), (69, 28867840), (76, 26208960), (80, 24898512), (92, 21650880), (95, 20967168), (96, 20748760), (114, 17472640), (115, 17320704), (120, 16599008), (128, 15561570), (138, 14433920), (152, 13104480), (160, 12449256), (184, 10825440), (190, 10483584), (192, 10374380), (228, 8736320), (230, 8660352), (240, 8299504), (256, 7780785), (276, 7216960), (285, 6989056), (304, 6552240), (320, 6224628), (345, 5773568), (368, 5412720), (380, 5241792), (384, 5187190), (437, 4558080), (456, 4368160), (460, 4330176), (480, 4149752), (552, 3608480), (570, 3494528), (608, 3276120), (640, 3112314), (690, 2886784), (736, 2706360), (760, 2620896), (768, 2593595), (874, 2279040), (912, 2184080), (920, 2165088), (960, 2074876), (1104, 1804240), (1140, 1747264), (1187, 1678080), (1216, 1638060), (1280, 1556157), (1311, 1519360), (1380, 1443392), (1472, 1353180), (1520, 1310448), (1748, 1139520), (1824, 1092040), (1840, 1082544), (1920, 1037438), (2185, 911616), (2208, 902120), (2280, 873632), (2374, 839040), (2432, 819030), (2622, 759680), (2760, 721696), (2944, 676590), (3040, 655224), (3496, 569760), (3561, 559360), (3648, 546020), (3680, 541272), (3840, 518719), (4370, 455808), (4416, 451060), (4560, 436816), (4748, 419520), (4864, 409515), (5244, 379840), (5520, 360848), (5888, 338295), (5935, 335616), (6080, 327612), (6555, 303872), (6992, 284880), (7122, 279680), (7296, 273010), (7360, 270636), (8740, 227904), (8832, 225530), (9120, 218408), (9496, 209760), (10488, 189920), (11040, 180424), (11870, 167808), (12160, 163806), (13110, 151936), (13984, 142440), (14244, 139840), (14592, 136505), (14720, 135318), (17480, 113952), (17664, 112765), (17805, 111872), (18240, 109204), (18992, 104880), (20976, 94960), (22080, 90212), (22553, 88320), (23740, 83904), (24320, 81903), (26220, 75968), (27301, 72960), (27968, 71220), (28488, 69920), (29440, 67659), (34960, 56976), (35610, 55936), (36480, 54602), (37984, 52440), (41952, 47480), (44160, 45106)]