18817920

素因数分解:

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

素因数の和:56

約数の個数: 288

約数和(自身を含む): 74070360

約数和(自身を除く): 55252440

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, 81, 88, 90, 96, 99, 108, 110, 120, 121, 128, 132, 135, 144, 160, 162, 165, 176, 180, 192, 198, 216, 220, 240, 242, 243, 264, 270, 288, 297, 320, 324, 330, 352, 360, 363, 384, 396, 405, 432, 440, 480, 484, 486, 495, 528, 540, 576, 594, 605, 640, 648, 660, 704, 720, 726, 792, 810, 864, 880, 891, 960, 968, 972, 990, 1056, 1080, 1089, 1152, 1188, 1210, 1215, 1296, 1320, 1408, 1440, 1452, 1485, 1584, 1620, 1728, 1760, 1782, 1815, 1920, 1936, 1944, 1980, 2112, 2160, 2178, 2376, 2420, 2430, 2592, 2640, 2673, 2880, 2904, 2970, 3168, 3240, 3267, 3456, 3520, 3564, 3630, 3872, 3888, 3960, 4224, 4320, 4356, 4455, 4752, 4840, 4860, 5184, 5280, 5346, 5445, 5760, 5808, 5940, 6336, 6480, 6534, 7040, 7128, 7260, 7744, 7776, 7920, 8640, 8712, 8910, 9504, 9680, 9720, 9801, 10368, 10560, 10692, 10890, 11616, 11880, 12672, 12960, 13068, 13365, 14256, 14520, 15488, 15552, 15840, 16335, 17280, 17424, 17820, 19008, 19360, 19440, 19602, 21120, 21384, 21780, 23232, 23760, 25920, 26136, 26730, 28512, 29040, 29403, 31104, 31680, 32670, 34848, 35640, 38016, 38720, 38880, 39204, 42768, 43560, 46464, 47520, 49005, 51840, 52272, 53460, 57024, 58080, 58806, 63360, 65340, 69696, 71280, 77440, 77760, 78408, 85536, 87120, 95040, 98010, 104544, 106920, 114048, 116160, 117612, 130680, 139392, 142560, 147015, 155520, 156816, 171072, 174240, 190080, 196020, 209088, 213840, 232320, 235224, 261360, 285120, 294030, 313632, 342144, 348480, 392040, 418176, 427680, 470448, 522720, 570240, 588060, 627264, 696960, 784080, 855360, 940896, 1045440, 1176120, 1254528, 1568160, 1710720, 1881792, 2090880, 2352240, 3136320, 3763584, 4704480, 6272640, 9408960, 18817920]

約数ペア:

[(1, 18817920), (2, 9408960), (3, 6272640), (4, 4704480), (5, 3763584), (6, 3136320), (8, 2352240), (9, 2090880), (10, 1881792), (11, 1710720), (12, 1568160), (15, 1254528), (16, 1176120), (18, 1045440), (20, 940896), (22, 855360), (24, 784080), (27, 696960), (30, 627264), (32, 588060), (33, 570240), (36, 522720), (40, 470448), (44, 427680), (45, 418176), (48, 392040), (54, 348480), (55, 342144), (60, 313632), (64, 294030), (66, 285120), (72, 261360), (80, 235224), (81, 232320), (88, 213840), (90, 209088), (96, 196020), (99, 190080), (108, 174240), (110, 171072), (120, 156816), (121, 155520), (128, 147015), (132, 142560), (135, 139392), (144, 130680), (160, 117612), (162, 116160), (165, 114048), (176, 106920), (180, 104544), (192, 98010), (198, 95040), (216, 87120), (220, 85536), (240, 78408), (242, 77760), (243, 77440), (264, 71280), (270, 69696), (288, 65340), (297, 63360), (320, 58806), (324, 58080), (330, 57024), (352, 53460), (360, 52272), (363, 51840), (384, 49005), (396, 47520), (405, 46464), (432, 43560), (440, 42768), (480, 39204), (484, 38880), (486, 38720), (495, 38016), (528, 35640), (540, 34848), (576, 32670), (594, 31680), (605, 31104), (640, 29403), (648, 29040), (660, 28512), (704, 26730), (720, 26136), (726, 25920), (792, 23760), (810, 23232), (864, 21780), (880, 21384), (891, 21120), (960, 19602), (968, 19440), (972, 19360), (990, 19008), (1056, 17820), (1080, 17424), (1089, 17280), (1152, 16335), (1188, 15840), (1210, 15552), (1215, 15488), (1296, 14520), (1320, 14256), (1408, 13365), (1440, 13068), (1452, 12960), (1485, 12672), (1584, 11880), (1620, 11616), (1728, 10890), (1760, 10692), (1782, 10560), (1815, 10368), (1920, 9801), (1936, 9720), (1944, 9680), (1980, 9504), (2112, 8910), (2160, 8712), (2178, 8640), (2376, 7920), (2420, 7776), (2430, 7744), (2592, 7260), (2640, 7128), (2673, 7040), (2880, 6534), (2904, 6480), (2970, 6336), (3168, 5940), (3240, 5808), (3267, 5760), (3456, 5445), (3520, 5346), (3564, 5280), (3630, 5184), (3872, 4860), (3888, 4840), (3960, 4752), (4224, 4455), (4320, 4356)]