81861120

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 480

約数和(自身を含む): 344710080

約数和(自身を除く): 262848960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20, 22, 24, 30, 32, 33, 34, 36, 38, 40, 44, 45, 48, 51, 55, 57, 60, 64, 66, 68, 72, 76, 80, 85, 88, 90, 95, 96, 99, 102, 110, 114, 120, 128, 132, 136, 144, 152, 153, 160, 165, 170, 171, 176, 180, 187, 190, 192, 198, 204, 209, 220, 228, 240, 255, 256, 264, 272, 285, 288, 304, 306, 320, 323, 330, 340, 342, 352, 360, 374, 380, 384, 396, 408, 418, 440, 456, 480, 495, 510, 512, 528, 544, 561, 570, 576, 608, 612, 627, 640, 646, 660, 680, 684, 704, 720, 748, 760, 765, 768, 792, 816, 836, 855, 880, 912, 935, 960, 969, 990, 1020, 1045, 1056, 1088, 1122, 1140, 1152, 1216, 1224, 1254, 1280, 1292, 1320, 1360, 1368, 1408, 1440, 1496, 1520, 1530, 1536, 1584, 1615, 1632, 1672, 1683, 1710, 1760, 1824, 1870, 1881, 1920, 1938, 1980, 2040, 2090, 2112, 2176, 2244, 2280, 2304, 2432, 2448, 2508, 2560, 2584, 2640, 2720, 2736, 2805, 2816, 2880, 2907, 2992, 3040, 3060, 3135, 3168, 3230, 3264, 3344, 3366, 3420, 3520, 3553, 3648, 3740, 3762, 3840, 3876, 3960, 4080, 4180, 4224, 4352, 4488, 4560, 4608, 4845, 4864, 4896, 5016, 5168, 5280, 5440, 5472, 5610, 5632, 5760, 5814, 5984, 6080, 6120, 6270, 6336, 6460, 6528, 6688, 6732, 6840, 7040, 7106, 7296, 7480, 7524, 7680, 7752, 7920, 8160, 8360, 8415, 8448, 8704, 8976, 9120, 9405, 9690, 9728, 9792, 10032, 10336, 10560, 10659, 10880, 10944, 11220, 11520, 11628, 11968, 12160, 12240, 12540, 12672, 12920, 13056, 13376, 13464, 13680, 14080, 14212, 14535, 14592, 14960, 15048, 15504, 15840, 16320, 16720, 16830, 16896, 17765, 17952, 18240, 18810, 19380, 19584, 20064, 20672, 21120, 21318, 21760, 21888, 22440, 23040, 23256, 23936, 24320, 24480, 25080, 25344, 25840, 26112, 26752, 26928, 27360, 28160, 28424, 29070, 29184, 29920, 30096, 31008, 31680, 31977, 32640, 33440, 33660, 35530, 35904, 36480, 37620, 38760, 39168, 40128, 41344, 42240, 42636, 43520, 43776, 44880, 46512, 47872, 48640, 48960, 50160, 50688, 51680, 53295, 53504, 53856, 54720, 56848, 58140, 59840, 60192, 62016, 63360, 63954, 65280, 66880, 67320, 71060, 71808, 72960, 75240, 77520, 78336, 80256, 82688, 84480, 85272, 87552, 89760, 93024, 95744, 97920, 100320, 103360, 106590, 107008, 107712, 109440, 113696, 116280, 119680, 120384, 124032, 126720, 127908, 130560, 133760, 134640, 142120, 143616, 145920, 150480, 155040, 159885, 160512, 165376, 170544, 179520, 186048, 195840, 200640, 206720, 213180, 215424, 218880, 227392, 232560, 239360, 240768, 248064, 253440, 255816, 267520, 269280, 284240, 287232, 300960, 310080, 319770, 321024, 341088, 359040, 372096, 391680, 401280, 413440, 426360, 430848, 437760, 454784, 465120, 478720, 481536, 496128, 511632, 535040, 538560, 568480, 601920, 620160, 639540, 682176, 718080, 744192, 802560, 826880, 852720, 861696, 909568, 930240, 963072, 1023264, 1077120, 1136960, 1203840, 1240320, 1279080, 1364352, 1436160, 1488384, 1605120, 1705440, 1819136, 1860480, 2046528, 2154240, 2273920, 2407680, 2480640, 2558160, 2728704, 3410880, 3720960, 4093056, 4308480, 4547840, 4815360, 5116320, 5457408, 6821760, 7441920, 8186112, 9095680, 10232640, 13643520, 16372224, 20465280, 27287040, 40930560, 81861120]

約数ペア:

[(1, 81861120), (2, 40930560), (3, 27287040), (4, 20465280), (5, 16372224), (6, 13643520), (8, 10232640), (9, 9095680), (10, 8186112), (11, 7441920), (12, 6821760), (15, 5457408), (16, 5116320), (17, 4815360), (18, 4547840), (19, 4308480), (20, 4093056), (22, 3720960), (24, 3410880), (30, 2728704), (32, 2558160), (33, 2480640), (34, 2407680), (36, 2273920), (38, 2154240), (40, 2046528), (44, 1860480), (45, 1819136), (48, 1705440), (51, 1605120), (55, 1488384), (57, 1436160), (60, 1364352), (64, 1279080), (66, 1240320), (68, 1203840), (72, 1136960), (76, 1077120), (80, 1023264), (85, 963072), (88, 930240), (90, 909568), (95, 861696), (96, 852720), (99, 826880), (102, 802560), (110, 744192), (114, 718080), (120, 682176), (128, 639540), (132, 620160), (136, 601920), (144, 568480), (152, 538560), (153, 535040), (160, 511632), (165, 496128), (170, 481536), (171, 478720), (176, 465120), (180, 454784), (187, 437760), (190, 430848), (192, 426360), (198, 413440), (204, 401280), (209, 391680), (220, 372096), (228, 359040), (240, 341088), (255, 321024), (256, 319770), (264, 310080), (272, 300960), (285, 287232), (288, 284240), (304, 269280), (306, 267520), (320, 255816), (323, 253440), (330, 248064), (340, 240768), (342, 239360), (352, 232560), (360, 227392), (374, 218880), (380, 215424), (384, 213180), (396, 206720), (408, 200640), (418, 195840), (440, 186048), (456, 179520), (480, 170544), (495, 165376), (510, 160512), (512, 159885), (528, 155040), (544, 150480), (561, 145920), (570, 143616), (576, 142120), (608, 134640), (612, 133760), (627, 130560), (640, 127908), (646, 126720), (660, 124032), (680, 120384), (684, 119680), (704, 116280), (720, 113696), (748, 109440), (760, 107712), (765, 107008), (768, 106590), (792, 103360), (816, 100320), (836, 97920), (855, 95744), (880, 93024), (912, 89760), (935, 87552), (960, 85272), (969, 84480), (990, 82688), (1020, 80256), (1045, 78336), (1056, 77520), (1088, 75240), (1122, 72960), (1140, 71808), (1152, 71060), (1216, 67320), (1224, 66880), (1254, 65280), (1280, 63954), (1292, 63360), (1320, 62016), (1360, 60192), (1368, 59840), (1408, 58140), (1440, 56848), (1496, 54720), (1520, 53856), (1530, 53504), (1536, 53295), (1584, 51680), (1615, 50688), (1632, 50160), (1672, 48960), (1683, 48640), (1710, 47872), (1760, 46512), (1824, 44880), (1870, 43776), (1881, 43520), (1920, 42636), (1938, 42240), (1980, 41344), (2040, 40128), (2090, 39168), (2112, 38760), (2176, 37620), (2244, 36480), (2280, 35904), (2304, 35530), (2432, 33660), (2448, 33440), (2508, 32640), (2560, 31977), (2584, 31680), (2640, 31008), (2720, 30096), (2736, 29920), (2805, 29184), (2816, 29070), (2880, 28424), (2907, 28160), (2992, 27360), (3040, 26928), (3060, 26752), (3135, 26112), (3168, 25840), (3230, 25344), (3264, 25080), (3344, 24480), (3366, 24320), (3420, 23936), (3520, 23256), (3553, 23040), (3648, 22440), (3740, 21888), (3762, 21760), (3840, 21318), (3876, 21120), (3960, 20672), (4080, 20064), (4180, 19584), (4224, 19380), (4352, 18810), (4488, 18240), (4560, 17952), (4608, 17765), (4845, 16896), (4864, 16830), (4896, 16720), (5016, 16320), (5168, 15840), (5280, 15504), (5440, 15048), (5472, 14960), (5610, 14592), (5632, 14535), (5760, 14212), (5814, 14080), (5984, 13680), (6080, 13464), (6120, 13376), (6270, 13056), (6336, 12920), (6460, 12672), (6528, 12540), (6688, 12240), (6732, 12160), (6840, 11968), (7040, 11628), (7106, 11520), (7296, 11220), (7480, 10944), (7524, 10880), (7680, 10659), (7752, 10560), (7920, 10336), (8160, 10032), (8360, 9792), (8415, 9728), (8448, 9690), (8704, 9405), (8976, 9120)]