638478720

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3359}}^1$

素因数の和:3398

約数の個数: 256

約数和(自身を含む): 2467584000

約数和(自身を除く): 1829105280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 128, 132, 135, 144, 160, 165, 176, 180, 192, 198, 216, 220, 240, 264, 270, 288, 297, 320, 330, 352, 360, 384, 396, 432, 440, 480, 495, 528, 540, 576, 594, 640, 660, 704, 720, 792, 864, 880, 960, 990, 1056, 1080, 1152, 1188, 1320, 1408, 1440, 1485, 1584, 1728, 1760, 1920, 1980, 2112, 2160, 2376, 2640, 2880, 2970, 3168, 3359, 3456, 3520, 3960, 4224, 4320, 4752, 5280, 5760, 5940, 6336, 6718, 7040, 7920, 8640, 9504, 10077, 10560, 11880, 12672, 13436, 15840, 16795, 17280, 19008, 20154, 21120, 23760, 26872, 30231, 31680, 33590, 36949, 38016, 40308, 47520, 50385, 53744, 60462, 63360, 67180, 73898, 80616, 90693, 95040, 100770, 107488, 110847, 120924, 134360, 147796, 151155, 161232, 181386, 184745, 190080, 201540, 214976, 221694, 241848, 268720, 295592, 302310, 322464, 332541, 362772, 369490, 403080, 429952, 443388, 453465, 483696, 537440, 554235, 591184, 604620, 644928, 665082, 725544, 738980, 806160, 886776, 906930, 967392, 997623, 1074880, 1108470, 1182368, 1209240, 1289856, 1330164, 1451088, 1477960, 1612320, 1662705, 1773552, 1813860, 1934784, 1995246, 2149760, 2216940, 2364736, 2418480, 2660328, 2902176, 2955920, 3224640, 3325410, 3547104, 3627720, 3869568, 3990492, 4433880, 4729472, 4836960, 4988115, 5320656, 5804352, 5911840, 6449280, 6650820, 7094208, 7255440, 7980984, 8867760, 9673920, 9976230, 10641312, 11608704, 11823680, 13301640, 14188416, 14510880, 15961968, 17735520, 19347840, 19952460, 21282624, 23647360, 26603280, 29021760, 31923936, 35471040, 39904920, 42565248, 53206560, 58043520, 63847872, 70942080, 79809840, 106413120, 127695744, 159619680, 212826240, 319239360, 638478720]

約数ペア:

[(1, 638478720), (2, 319239360), (3, 212826240), (4, 159619680), (5, 127695744), (6, 106413120), (8, 79809840), (9, 70942080), (10, 63847872), (11, 58043520), (12, 53206560), (15, 42565248), (16, 39904920), (18, 35471040), (20, 31923936), (22, 29021760), (24, 26603280), (27, 23647360), (30, 21282624), (32, 19952460), (33, 19347840), (36, 17735520), (40, 15961968), (44, 14510880), (45, 14188416), (48, 13301640), (54, 11823680), (55, 11608704), (60, 10641312), (64, 9976230), (66, 9673920), (72, 8867760), (80, 7980984), (88, 7255440), (90, 7094208), (96, 6650820), (99, 6449280), (108, 5911840), (110, 5804352), (120, 5320656), (128, 4988115), (132, 4836960), (135, 4729472), (144, 4433880), (160, 3990492), (165, 3869568), (176, 3627720), (180, 3547104), (192, 3325410), (198, 3224640), (216, 2955920), (220, 2902176), (240, 2660328), (264, 2418480), (270, 2364736), (288, 2216940), (297, 2149760), (320, 1995246), (330, 1934784), (352, 1813860), (360, 1773552), (384, 1662705), (396, 1612320), (432, 1477960), (440, 1451088), (480, 1330164), (495, 1289856), (528, 1209240), (540, 1182368), (576, 1108470), (594, 1074880), (640, 997623), (660, 967392), (704, 906930), (720, 886776), (792, 806160), (864, 738980), (880, 725544), (960, 665082), (990, 644928), (1056, 604620), (1080, 591184), (1152, 554235), (1188, 537440), (1320, 483696), (1408, 453465), (1440, 443388), (1485, 429952), (1584, 403080), (1728, 369490), (1760, 362772), (1920, 332541), (1980, 322464), (2112, 302310), (2160, 295592), (2376, 268720), (2640, 241848), (2880, 221694), (2970, 214976), (3168, 201540), (3359, 190080), (3456, 184745), (3520, 181386), (3960, 161232), (4224, 151155), (4320, 147796), (4752, 134360), (5280, 120924), (5760, 110847), (5940, 107488), (6336, 100770), (6718, 95040), (7040, 90693), (7920, 80616), (8640, 73898), (9504, 67180), (10077, 63360), (10560, 60462), (11880, 53744), (12672, 50385), (13436, 47520), (15840, 40308), (16795, 38016), (17280, 36949), (19008, 33590), (20154, 31680), (21120, 30231), (23760, 26872)]