21781760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:69

約数の個数: 288

約数和(自身を含む): 74172672

約数和(自身を除く): 52390912

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 20, 22, 26, 28, 32, 34, 35, 40, 44, 52, 55, 56, 64, 65, 68, 70, 77, 80, 85, 88, 91, 104, 110, 112, 119, 128, 130, 136, 140, 143, 154, 160, 170, 176, 182, 187, 208, 220, 221, 224, 238, 256, 260, 272, 280, 286, 308, 320, 340, 352, 364, 374, 385, 416, 440, 442, 448, 455, 476, 520, 544, 560, 572, 595, 616, 640, 680, 704, 715, 728, 748, 770, 832, 880, 884, 896, 910, 935, 952, 1001, 1040, 1088, 1105, 1120, 1144, 1190, 1232, 1280, 1309, 1360, 1408, 1430, 1456, 1496, 1540, 1547, 1664, 1760, 1768, 1792, 1820, 1870, 1904, 2002, 2080, 2176, 2210, 2240, 2288, 2380, 2431, 2464, 2618, 2720, 2816, 2860, 2912, 2992, 3080, 3094, 3328, 3520, 3536, 3640, 3740, 3808, 4004, 4160, 4352, 4420, 4480, 4576, 4760, 4862, 4928, 5005, 5236, 5440, 5720, 5824, 5984, 6160, 6188, 6545, 7040, 7072, 7280, 7480, 7616, 7735, 8008, 8320, 8840, 8960, 9152, 9520, 9724, 9856, 10010, 10472, 10880, 11440, 11648, 11968, 12155, 12320, 12376, 13090, 14080, 14144, 14560, 14960, 15232, 15470, 16016, 16640, 17017, 17680, 18304, 19040, 19448, 19712, 20020, 20944, 21760, 22880, 23296, 23936, 24310, 24640, 24752, 26180, 28288, 29120, 29920, 30464, 30940, 32032, 34034, 35360, 36608, 38080, 38896, 40040, 41888, 45760, 47872, 48620, 49280, 49504, 52360, 56576, 58240, 59840, 61880, 64064, 68068, 70720, 76160, 77792, 80080, 83776, 85085, 91520, 97240, 98560, 99008, 104720, 116480, 119680, 123760, 128128, 136136, 141440, 152320, 155584, 160160, 167552, 170170, 183040, 194480, 198016, 209440, 239360, 247520, 256256, 272272, 282880, 311168, 320320, 335104, 340340, 388960, 396032, 418880, 495040, 544544, 622336, 640640, 680680, 777920, 837760, 990080, 1089088, 1281280, 1361360, 1555840, 1675520, 1980160, 2178176, 2722720, 3111680, 4356352, 5445440, 10890880, 21781760]

約数ペア:

[(1, 21781760), (2, 10890880), (4, 5445440), (5, 4356352), (7, 3111680), (8, 2722720), (10, 2178176), (11, 1980160), (13, 1675520), (14, 1555840), (16, 1361360), (17, 1281280), (20, 1089088), (22, 990080), (26, 837760), (28, 777920), (32, 680680), (34, 640640), (35, 622336), (40, 544544), (44, 495040), (52, 418880), (55, 396032), (56, 388960), (64, 340340), (65, 335104), (68, 320320), (70, 311168), (77, 282880), (80, 272272), (85, 256256), (88, 247520), (91, 239360), (104, 209440), (110, 198016), (112, 194480), (119, 183040), (128, 170170), (130, 167552), (136, 160160), (140, 155584), (143, 152320), (154, 141440), (160, 136136), (170, 128128), (176, 123760), (182, 119680), (187, 116480), (208, 104720), (220, 99008), (221, 98560), (224, 97240), (238, 91520), (256, 85085), (260, 83776), (272, 80080), (280, 77792), (286, 76160), (308, 70720), (320, 68068), (340, 64064), (352, 61880), (364, 59840), (374, 58240), (385, 56576), (416, 52360), (440, 49504), (442, 49280), (448, 48620), (455, 47872), (476, 45760), (520, 41888), (544, 40040), (560, 38896), (572, 38080), (595, 36608), (616, 35360), (640, 34034), (680, 32032), (704, 30940), (715, 30464), (728, 29920), (748, 29120), (770, 28288), (832, 26180), (880, 24752), (884, 24640), (896, 24310), (910, 23936), (935, 23296), (952, 22880), (1001, 21760), (1040, 20944), (1088, 20020), (1105, 19712), (1120, 19448), (1144, 19040), (1190, 18304), (1232, 17680), (1280, 17017), (1309, 16640), (1360, 16016), (1408, 15470), (1430, 15232), (1456, 14960), (1496, 14560), (1540, 14144), (1547, 14080), (1664, 13090), (1760, 12376), (1768, 12320), (1792, 12155), (1820, 11968), (1870, 11648), (1904, 11440), (2002, 10880), (2080, 10472), (2176, 10010), (2210, 9856), (2240, 9724), (2288, 9520), (2380, 9152), (2431, 8960), (2464, 8840), (2618, 8320), (2720, 8008), (2816, 7735), (2860, 7616), (2912, 7480), (2992, 7280), (3080, 7072), (3094, 7040), (3328, 6545), (3520, 6188), (3536, 6160), (3640, 5984), (3740, 5824), (3808, 5720), (4004, 5440), (4160, 5236), (4352, 5005), (4420, 4928), (4480, 4862), (4576, 4760)]