1388478720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 288

約数和(自身を含む): 4709376000

約数和(自身を除く): 3320897280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 79, 80, 92, 96, 115, 120, 128, 138, 158, 160, 184, 192, 199, 230, 237, 240, 256, 276, 316, 320, 345, 368, 384, 395, 398, 460, 474, 480, 552, 597, 632, 640, 690, 736, 768, 790, 796, 920, 948, 960, 995, 1104, 1185, 1194, 1264, 1280, 1380, 1472, 1580, 1592, 1817, 1840, 1896, 1920, 1990, 2208, 2370, 2388, 2528, 2760, 2944, 2985, 3160, 3184, 3634, 3680, 3792, 3840, 3980, 4416, 4577, 4740, 4776, 5056, 5451, 5520, 5888, 5970, 6320, 6368, 7268, 7360, 7584, 7960, 8832, 9085, 9154, 9480, 9552, 10112, 10902, 11040, 11940, 12640, 12736, 13731, 14536, 14720, 15168, 15721, 15920, 17664, 18170, 18308, 18960, 19104, 20224, 21804, 22080, 22885, 23880, 25280, 25472, 27255, 27462, 29072, 29440, 30336, 31442, 31840, 36340, 36616, 37920, 38208, 43608, 44160, 45770, 47163, 47760, 50560, 50944, 54510, 54924, 58144, 60672, 62884, 63680, 68655, 72680, 73232, 75840, 76416, 78605, 87216, 88320, 91540, 94326, 95520, 101120, 109020, 109848, 116288, 125768, 127360, 137310, 145360, 146464, 151680, 152832, 157210, 174432, 183080, 188652, 191040, 218040, 219696, 232576, 235815, 251536, 254720, 274620, 290720, 292928, 303360, 314420, 348864, 361583, 366160, 377304, 382080, 436080, 439392, 465152, 471630, 503072, 549240, 581440, 585856, 628840, 697728, 723166, 732320, 754608, 764160, 872160, 878784, 943260, 1006144, 1084749, 1098480, 1162880, 1171712, 1257680, 1395456, 1446332, 1464640, 1509216, 1744320, 1757568, 1807915, 1886520, 2012288, 2169498, 2196960, 2325760, 2515360, 2892664, 2929280, 3018432, 3488640, 3515136, 3615830, 3773040, 4024576, 4338996, 4393920, 5030720, 5423745, 5785328, 5858560, 6036864, 6977280, 7231660, 7546080, 8677992, 8787840, 10061440, 10847490, 11570656, 12073728, 14463320, 15092160, 17355984, 17575680, 20122880, 21694980, 23141312, 28926640, 30184320, 34711968, 43389960, 46282624, 57853280, 60368640, 69423936, 86779920, 92565248, 115706560, 138847872, 173559840, 231413120, 277695744, 347119680, 462826240, 694239360, 1388478720]

約数ペア:

[(1, 1388478720), (2, 694239360), (3, 462826240), (4, 347119680), (5, 277695744), (6, 231413120), (8, 173559840), (10, 138847872), (12, 115706560), (15, 92565248), (16, 86779920), (20, 69423936), (23, 60368640), (24, 57853280), (30, 46282624), (32, 43389960), (40, 34711968), (46, 30184320), (48, 28926640), (60, 23141312), (64, 21694980), (69, 20122880), (79, 17575680), (80, 17355984), (92, 15092160), (96, 14463320), (115, 12073728), (120, 11570656), (128, 10847490), (138, 10061440), (158, 8787840), (160, 8677992), (184, 7546080), (192, 7231660), (199, 6977280), (230, 6036864), (237, 5858560), (240, 5785328), (256, 5423745), (276, 5030720), (316, 4393920), (320, 4338996), (345, 4024576), (368, 3773040), (384, 3615830), (395, 3515136), (398, 3488640), (460, 3018432), (474, 2929280), (480, 2892664), (552, 2515360), (597, 2325760), (632, 2196960), (640, 2169498), (690, 2012288), (736, 1886520), (768, 1807915), (790, 1757568), (796, 1744320), (920, 1509216), (948, 1464640), (960, 1446332), (995, 1395456), (1104, 1257680), (1185, 1171712), (1194, 1162880), (1264, 1098480), (1280, 1084749), (1380, 1006144), (1472, 943260), (1580, 878784), (1592, 872160), (1817, 764160), (1840, 754608), (1896, 732320), (1920, 723166), (1990, 697728), (2208, 628840), (2370, 585856), (2388, 581440), (2528, 549240), (2760, 503072), (2944, 471630), (2985, 465152), (3160, 439392), (3184, 436080), (3634, 382080), (3680, 377304), (3792, 366160), (3840, 361583), (3980, 348864), (4416, 314420), (4577, 303360), (4740, 292928), (4776, 290720), (5056, 274620), (5451, 254720), (5520, 251536), (5888, 235815), (5970, 232576), (6320, 219696), (6368, 218040), (7268, 191040), (7360, 188652), (7584, 183080), (7960, 174432), (8832, 157210), (9085, 152832), (9154, 151680), (9480, 146464), (9552, 145360), (10112, 137310), (10902, 127360), (11040, 125768), (11940, 116288), (12640, 109848), (12736, 109020), (13731, 101120), (14536, 95520), (14720, 94326), (15168, 91540), (15721, 88320), (15920, 87216), (17664, 78605), (18170, 76416), (18308, 75840), (18960, 73232), (19104, 72680), (20224, 68655), (21804, 63680), (22080, 62884), (22885, 60672), (23880, 58144), (25280, 54924), (25472, 54510), (27255, 50944), (27462, 50560), (29072, 47760), (29440, 47163), (30336, 45770), (31442, 44160), (31840, 43608), (36340, 38208), (36616, 37920)]