278001920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 288

約数和(自身を含む): 847687680

約数和(自身を除く): 569685760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 32, 35, 38, 40, 46, 56, 64, 70, 71, 76, 80, 92, 95, 112, 115, 128, 133, 140, 142, 152, 160, 161, 184, 190, 224, 230, 256, 266, 280, 284, 304, 320, 322, 355, 368, 380, 437, 448, 460, 497, 532, 560, 568, 608, 640, 644, 665, 710, 736, 760, 805, 874, 896, 920, 994, 1064, 1120, 1136, 1216, 1280, 1288, 1330, 1349, 1420, 1472, 1520, 1610, 1633, 1748, 1792, 1840, 1988, 2128, 2185, 2240, 2272, 2432, 2485, 2576, 2660, 2698, 2840, 2944, 3040, 3059, 3220, 3266, 3496, 3680, 3976, 4256, 4370, 4480, 4544, 4864, 4970, 5152, 5320, 5396, 5680, 5888, 6080, 6118, 6440, 6532, 6745, 6992, 7360, 7952, 8165, 8512, 8740, 8960, 9088, 9443, 9940, 10304, 10640, 10792, 11360, 11431, 12160, 12236, 12880, 13064, 13490, 13984, 14720, 15295, 15904, 16330, 17024, 17480, 18176, 18886, 19880, 20608, 21280, 21584, 22720, 22862, 24320, 24472, 25760, 26128, 26980, 27968, 29440, 30590, 31027, 31808, 32660, 34048, 34960, 37772, 39760, 41216, 42560, 43168, 45440, 45724, 47215, 48944, 51520, 52256, 53960, 55936, 57155, 61180, 62054, 63616, 65320, 69920, 75544, 79520, 85120, 86336, 90880, 91448, 94430, 97888, 103040, 104512, 107920, 111872, 114310, 122360, 124108, 127232, 130640, 139840, 151088, 155135, 159040, 170240, 172672, 182896, 188860, 195776, 206080, 209024, 215840, 217189, 228620, 244720, 248216, 261280, 279680, 302176, 310270, 318080, 345344, 365792, 377720, 391552, 418048, 431680, 434378, 457240, 489440, 496432, 522560, 559360, 604352, 620540, 636160, 731584, 755440, 783104, 863360, 868756, 914480, 978880, 992864, 1045120, 1085945, 1208704, 1241080, 1463168, 1510880, 1726720, 1737512, 1828960, 1957760, 1985728, 2090240, 2171890, 2417408, 2482160, 2926336, 3021760, 3475024, 3657920, 3915520, 3971456, 4343780, 4964320, 6043520, 6950048, 7315840, 7942912, 8687560, 9928640, 12087040, 13900096, 14631680, 17375120, 19857280, 27800192, 34750240, 39714560, 55600384, 69500480, 139000960, 278001920]

約数ペア:

[(1, 278001920), (2, 139000960), (4, 69500480), (5, 55600384), (7, 39714560), (8, 34750240), (10, 27800192), (14, 19857280), (16, 17375120), (19, 14631680), (20, 13900096), (23, 12087040), (28, 9928640), (32, 8687560), (35, 7942912), (38, 7315840), (40, 6950048), (46, 6043520), (56, 4964320), (64, 4343780), (70, 3971456), (71, 3915520), (76, 3657920), (80, 3475024), (92, 3021760), (95, 2926336), (112, 2482160), (115, 2417408), (128, 2171890), (133, 2090240), (140, 1985728), (142, 1957760), (152, 1828960), (160, 1737512), (161, 1726720), (184, 1510880), (190, 1463168), (224, 1241080), (230, 1208704), (256, 1085945), (266, 1045120), (280, 992864), (284, 978880), (304, 914480), (320, 868756), (322, 863360), (355, 783104), (368, 755440), (380, 731584), (437, 636160), (448, 620540), (460, 604352), (497, 559360), (532, 522560), (560, 496432), (568, 489440), (608, 457240), (640, 434378), (644, 431680), (665, 418048), (710, 391552), (736, 377720), (760, 365792), (805, 345344), (874, 318080), (896, 310270), (920, 302176), (994, 279680), (1064, 261280), (1120, 248216), (1136, 244720), (1216, 228620), (1280, 217189), (1288, 215840), (1330, 209024), (1349, 206080), (1420, 195776), (1472, 188860), (1520, 182896), (1610, 172672), (1633, 170240), (1748, 159040), (1792, 155135), (1840, 151088), (1988, 139840), (2128, 130640), (2185, 127232), (2240, 124108), (2272, 122360), (2432, 114310), (2485, 111872), (2576, 107920), (2660, 104512), (2698, 103040), (2840, 97888), (2944, 94430), (3040, 91448), (3059, 90880), (3220, 86336), (3266, 85120), (3496, 79520), (3680, 75544), (3976, 69920), (4256, 65320), (4370, 63616), (4480, 62054), (4544, 61180), (4864, 57155), (4970, 55936), (5152, 53960), (5320, 52256), (5396, 51520), (5680, 48944), (5888, 47215), (6080, 45724), (6118, 45440), (6440, 43168), (6532, 42560), (6745, 41216), (6992, 39760), (7360, 37772), (7952, 34960), (8165, 34048), (8512, 32660), (8740, 31808), (8960, 31027), (9088, 30590), (9443, 29440), (9940, 27968), (10304, 26980), (10640, 26128), (10792, 25760), (11360, 24472), (11431, 24320), (12160, 22862), (12236, 22720), (12880, 21584), (13064, 21280), (13490, 20608), (13984, 19880), (14720, 18886), (15295, 18176), (15904, 17480), (16330, 17024)]