21518640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:73

約数の個数: 360

約数和(自身を含む): 90046320

約数和(自身を除く): 68527680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 19, 20, 22, 24, 26, 30, 33, 36, 38, 39, 40, 44, 45, 48, 52, 55, 57, 60, 65, 66, 72, 76, 78, 80, 88, 90, 95, 99, 104, 110, 114, 117, 120, 121, 130, 132, 143, 144, 152, 156, 165, 171, 176, 180, 190, 195, 198, 208, 209, 220, 228, 234, 240, 242, 247, 260, 264, 285, 286, 304, 312, 330, 342, 360, 363, 380, 390, 396, 418, 429, 440, 456, 468, 484, 494, 495, 520, 528, 570, 572, 585, 605, 624, 627, 660, 684, 715, 720, 726, 741, 760, 780, 792, 836, 855, 858, 880, 912, 936, 968, 988, 990, 1040, 1045, 1089, 1140, 1144, 1170, 1210, 1235, 1254, 1287, 1320, 1368, 1430, 1452, 1482, 1520, 1560, 1573, 1584, 1672, 1710, 1716, 1815, 1872, 1881, 1936, 1976, 1980, 2090, 2145, 2178, 2223, 2280, 2288, 2299, 2340, 2420, 2470, 2508, 2574, 2640, 2717, 2736, 2860, 2904, 2964, 3120, 3135, 3146, 3344, 3420, 3432, 3630, 3705, 3762, 3952, 3960, 4180, 4290, 4356, 4446, 4560, 4598, 4680, 4719, 4840, 4940, 5016, 5148, 5434, 5445, 5720, 5808, 5928, 6270, 6292, 6435, 6840, 6864, 6897, 7260, 7410, 7524, 7865, 7920, 8151, 8360, 8580, 8712, 8892, 9196, 9360, 9405, 9438, 9680, 9880, 10032, 10296, 10868, 10890, 11115, 11440, 11495, 11856, 12540, 12584, 12870, 13585, 13680, 13794, 14157, 14520, 14820, 15048, 15730, 16302, 16720, 17160, 17424, 17784, 18392, 18810, 18876, 19760, 20592, 20691, 21736, 21780, 22230, 22990, 23595, 24453, 25080, 25168, 25740, 27170, 27588, 28314, 29040, 29640, 29887, 30096, 31460, 32604, 34320, 34485, 35568, 36784, 37620, 37752, 40755, 41382, 43472, 43560, 44460, 45980, 47190, 48906, 50160, 51480, 54340, 55176, 56628, 59280, 59774, 62920, 65208, 68970, 70785, 75240, 75504, 81510, 82764, 87120, 88920, 89661, 91960, 94380, 97812, 102960, 103455, 108680, 110352, 113256, 119548, 122265, 125840, 130416, 137940, 141570, 149435, 150480, 163020, 165528, 177840, 179322, 183920, 188760, 195624, 206910, 217360, 226512, 239096, 244530, 268983, 275880, 283140, 298870, 326040, 331056, 358644, 377520, 391248, 413820, 448305, 478192, 489060, 537966, 551760, 566280, 597740, 652080, 717288, 827640, 896610, 978120, 1075932, 1132560, 1195480, 1344915, 1434576, 1655280, 1793220, 1956240, 2151864, 2390960, 2689830, 3586440, 4303728, 5379660, 7172880, 10759320, 21518640]

約数ペア:

[(1, 21518640), (2, 10759320), (3, 7172880), (4, 5379660), (5, 4303728), (6, 3586440), (8, 2689830), (9, 2390960), (10, 2151864), (11, 1956240), (12, 1793220), (13, 1655280), (15, 1434576), (16, 1344915), (18, 1195480), (19, 1132560), (20, 1075932), (22, 978120), (24, 896610), (26, 827640), (30, 717288), (33, 652080), (36, 597740), (38, 566280), (39, 551760), (40, 537966), (44, 489060), (45, 478192), (48, 448305), (52, 413820), (55, 391248), (57, 377520), (60, 358644), (65, 331056), (66, 326040), (72, 298870), (76, 283140), (78, 275880), (80, 268983), (88, 244530), (90, 239096), (95, 226512), (99, 217360), (104, 206910), (110, 195624), (114, 188760), (117, 183920), (120, 179322), (121, 177840), (130, 165528), (132, 163020), (143, 150480), (144, 149435), (152, 141570), (156, 137940), (165, 130416), (171, 125840), (176, 122265), (180, 119548), (190, 113256), (195, 110352), (198, 108680), (208, 103455), (209, 102960), (220, 97812), (228, 94380), (234, 91960), (240, 89661), (242, 88920), (247, 87120), (260, 82764), (264, 81510), (285, 75504), (286, 75240), (304, 70785), (312, 68970), (330, 65208), (342, 62920), (360, 59774), (363, 59280), (380, 56628), (390, 55176), (396, 54340), (418, 51480), (429, 50160), (440, 48906), (456, 47190), (468, 45980), (484, 44460), (494, 43560), (495, 43472), (520, 41382), (528, 40755), (570, 37752), (572, 37620), (585, 36784), (605, 35568), (624, 34485), (627, 34320), (660, 32604), (684, 31460), (715, 30096), (720, 29887), (726, 29640), (741, 29040), (760, 28314), (780, 27588), (792, 27170), (836, 25740), (855, 25168), (858, 25080), (880, 24453), (912, 23595), (936, 22990), (968, 22230), (988, 21780), (990, 21736), (1040, 20691), (1045, 20592), (1089, 19760), (1140, 18876), (1144, 18810), (1170, 18392), (1210, 17784), (1235, 17424), (1254, 17160), (1287, 16720), (1320, 16302), (1368, 15730), (1430, 15048), (1452, 14820), (1482, 14520), (1520, 14157), (1560, 13794), (1573, 13680), (1584, 13585), (1672, 12870), (1710, 12584), (1716, 12540), (1815, 11856), (1872, 11495), (1881, 11440), (1936, 11115), (1976, 10890), (1980, 10868), (2090, 10296), (2145, 10032), (2178, 9880), (2223, 9680), (2280, 9438), (2288, 9405), (2299, 9360), (2340, 9196), (2420, 8892), (2470, 8712), (2508, 8580), (2574, 8360), (2640, 8151), (2717, 7920), (2736, 7865), (2860, 7524), (2904, 7410), (2964, 7260), (3120, 6897), (3135, 6864), (3146, 6840), (3344, 6435), (3420, 6292), (3432, 6270), (3630, 5928), (3705, 5808), (3762, 5720), (3952, 5445), (3960, 5434), (4180, 5148), (4290, 5016), (4356, 4940), (4446, 4840), (4560, 4719), (4598, 4680)]