81801720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:275

約数の個数: 384

約数和(自身を含む): 358525440

約数和(自身を除く): 276723720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 24, 26, 28, 30, 33, 35, 36, 39, 40, 42, 44, 45, 52, 55, 56, 60, 63, 65, 66, 70, 72, 77, 78, 84, 88, 90, 91, 99, 104, 105, 110, 117, 120, 126, 130, 132, 140, 143, 154, 156, 165, 168, 180, 182, 195, 198, 210, 220, 227, 231, 234, 252, 260, 264, 273, 280, 286, 308, 312, 315, 330, 360, 364, 385, 390, 396, 420, 429, 440, 454, 455, 462, 468, 495, 504, 520, 546, 572, 585, 616, 630, 660, 681, 693, 715, 728, 770, 780, 792, 819, 840, 858, 908, 910, 924, 936, 990, 1001, 1092, 1135, 1144, 1155, 1170, 1260, 1287, 1320, 1362, 1365, 1386, 1430, 1540, 1560, 1589, 1638, 1716, 1816, 1820, 1848, 1980, 2002, 2043, 2145, 2184, 2270, 2310, 2340, 2497, 2520, 2574, 2724, 2730, 2772, 2860, 2951, 3003, 3080, 3178, 3276, 3405, 3432, 3465, 3640, 3960, 4004, 4086, 4095, 4290, 4540, 4620, 4680, 4767, 4994, 5005, 5148, 5448, 5460, 5544, 5720, 5902, 6006, 6356, 6435, 6552, 6810, 6930, 7491, 7945, 8008, 8172, 8190, 8580, 8853, 9009, 9080, 9240, 9534, 9988, 10010, 10215, 10296, 10920, 11804, 12012, 12485, 12712, 12870, 13620, 13860, 14301, 14755, 14982, 15015, 15890, 16344, 16380, 17160, 17479, 17706, 18018, 19068, 19976, 20020, 20430, 20657, 22473, 23608, 23835, 24024, 24970, 25740, 26559, 27240, 27720, 28602, 29510, 29964, 30030, 31780, 32461, 32760, 34958, 35412, 36036, 37455, 38136, 40040, 40860, 41314, 44265, 44946, 45045, 47670, 49940, 51480, 52437, 53118, 57204, 59020, 59928, 60060, 61971, 63560, 64922, 69916, 70824, 71505, 72072, 74910, 81720, 82628, 87395, 88530, 89892, 90090, 95340, 97383, 99880, 103285, 104874, 106236, 112365, 114408, 118040, 120120, 123942, 129844, 132795, 139832, 143010, 149820, 157311, 162305, 165256, 174790, 177060, 179784, 180180, 185913, 190680, 194766, 206570, 209748, 212472, 224730, 227227, 247884, 259688, 262185, 265590, 286020, 292149, 299640, 309855, 314622, 324610, 349580, 354120, 360360, 371826, 389532, 413140, 419496, 449460, 454454, 486915, 495768, 524370, 531180, 572040, 584298, 619710, 629244, 649220, 681681, 699160, 743652, 779064, 786555, 826280, 898920, 908908, 929565, 973830, 1048740, 1062360, 1136135, 1168596, 1239420, 1258488, 1298440, 1363362, 1460745, 1487304, 1573110, 1817816, 1859130, 1947660, 2045043, 2097480, 2272270, 2337192, 2478840, 2726724, 2921490, 3146220, 3408405, 3718260, 3895320, 4090086, 4544540, 5453448, 5842980, 6292440, 6816810, 7436520, 8180172, 9089080, 10225215, 11685960, 13633620, 16360344, 20450430, 27267240, 40900860, 81801720]

約数ペア:

[(1, 81801720), (2, 40900860), (3, 27267240), (4, 20450430), (5, 16360344), (6, 13633620), (7, 11685960), (8, 10225215), (9, 9089080), (10, 8180172), (11, 7436520), (12, 6816810), (13, 6292440), (14, 5842980), (15, 5453448), (18, 4544540), (20, 4090086), (21, 3895320), (22, 3718260), (24, 3408405), (26, 3146220), (28, 2921490), (30, 2726724), (33, 2478840), (35, 2337192), (36, 2272270), (39, 2097480), (40, 2045043), (42, 1947660), (44, 1859130), (45, 1817816), (52, 1573110), (55, 1487304), (56, 1460745), (60, 1363362), (63, 1298440), (65, 1258488), (66, 1239420), (70, 1168596), (72, 1136135), (77, 1062360), (78, 1048740), (84, 973830), (88, 929565), (90, 908908), (91, 898920), (99, 826280), (104, 786555), (105, 779064), (110, 743652), (117, 699160), (120, 681681), (126, 649220), (130, 629244), (132, 619710), (140, 584298), (143, 572040), (154, 531180), (156, 524370), (165, 495768), (168, 486915), (180, 454454), (182, 449460), (195, 419496), (198, 413140), (210, 389532), (220, 371826), (227, 360360), (231, 354120), (234, 349580), (252, 324610), (260, 314622), (264, 309855), (273, 299640), (280, 292149), (286, 286020), (308, 265590), (312, 262185), (315, 259688), (330, 247884), (360, 227227), (364, 224730), (385, 212472), (390, 209748), (396, 206570), (420, 194766), (429, 190680), (440, 185913), (454, 180180), (455, 179784), (462, 177060), (468, 174790), (495, 165256), (504, 162305), (520, 157311), (546, 149820), (572, 143010), (585, 139832), (616, 132795), (630, 129844), (660, 123942), (681, 120120), (693, 118040), (715, 114408), (728, 112365), (770, 106236), (780, 104874), (792, 103285), (819, 99880), (840, 97383), (858, 95340), (908, 90090), (910, 89892), (924, 88530), (936, 87395), (990, 82628), (1001, 81720), (1092, 74910), (1135, 72072), (1144, 71505), (1155, 70824), (1170, 69916), (1260, 64922), (1287, 63560), (1320, 61971), (1362, 60060), (1365, 59928), (1386, 59020), (1430, 57204), (1540, 53118), (1560, 52437), (1589, 51480), (1638, 49940), (1716, 47670), (1816, 45045), (1820, 44946), (1848, 44265), (1980, 41314), (2002, 40860), (2043, 40040), (2145, 38136), (2184, 37455), (2270, 36036), (2310, 35412), (2340, 34958), (2497, 32760), (2520, 32461), (2574, 31780), (2724, 30030), (2730, 29964), (2772, 29510), (2860, 28602), (2951, 27720), (3003, 27240), (3080, 26559), (3178, 25740), (3276, 24970), (3405, 24024), (3432, 23835), (3465, 23608), (3640, 22473), (3960, 20657), (4004, 20430), (4086, 20020), (4095, 19976), (4290, 19068), (4540, 18018), (4620, 17706), (4680, 17479), (4767, 17160), (4994, 16380), (5005, 16344), (5148, 15890), (5448, 15015), (5460, 14982), (5544, 14755), (5720, 14301), (5902, 13860), (6006, 13620), (6356, 12870), (6435, 12712), (6552, 12485), (6810, 12012), (6930, 11804), (7491, 10920), (7945, 10296), (8008, 10215), (8172, 10010), (8190, 9988), (8580, 9534), (8853, 9240), (9009, 9080)]