19662720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:66

約数の個数: 384

約数和(自身を含む): 83721600

約数和(自身を除く): 64058880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 19, 20, 21, 22, 24, 28, 30, 32, 33, 35, 38, 40, 42, 44, 48, 49, 55, 56, 57, 60, 64, 66, 70, 76, 77, 80, 84, 88, 95, 96, 98, 105, 110, 112, 114, 120, 128, 132, 133, 140, 147, 152, 154, 160, 165, 168, 176, 190, 192, 196, 209, 210, 220, 224, 228, 231, 240, 245, 264, 266, 280, 285, 294, 304, 308, 320, 330, 336, 352, 380, 384, 385, 392, 399, 418, 420, 440, 448, 456, 462, 480, 490, 528, 532, 539, 560, 570, 588, 608, 616, 627, 640, 660, 665, 672, 704, 735, 760, 770, 784, 798, 836, 840, 880, 896, 912, 924, 931, 960, 980, 1045, 1056, 1064, 1078, 1120, 1140, 1155, 1176, 1216, 1232, 1254, 1320, 1330, 1344, 1408, 1463, 1470, 1520, 1540, 1568, 1596, 1617, 1672, 1680, 1760, 1824, 1848, 1862, 1920, 1960, 1995, 2090, 2112, 2128, 2156, 2240, 2280, 2310, 2352, 2432, 2464, 2508, 2640, 2660, 2688, 2695, 2793, 2926, 2940, 3040, 3080, 3135, 3136, 3192, 3234, 3344, 3360, 3520, 3648, 3696, 3724, 3920, 3990, 4180, 4224, 4256, 4312, 4389, 4480, 4560, 4620, 4655, 4704, 4928, 5016, 5280, 5320, 5390, 5586, 5852, 5880, 6080, 6160, 6270, 6272, 6384, 6468, 6688, 6720, 7040, 7296, 7315, 7392, 7448, 7840, 7980, 8085, 8360, 8512, 8624, 8778, 9120, 9240, 9310, 9408, 9856, 10032, 10241, 10560, 10640, 10780, 11172, 11704, 11760, 12160, 12320, 12540, 12768, 12936, 13376, 13440, 13965, 14630, 14784, 14896, 15680, 15960, 16170, 16720, 17024, 17248, 17556, 18240, 18480, 18620, 18816, 20064, 20482, 21120, 21280, 21560, 21945, 22344, 23408, 23520, 24640, 25080, 25536, 25872, 26752, 27930, 29260, 29568, 29792, 30723, 31360, 31920, 32340, 33440, 34496, 35112, 36480, 36960, 37240, 40128, 40964, 42560, 43120, 43890, 44688, 46816, 47040, 49280, 50160, 51072, 51205, 51744, 55860, 58520, 59584, 61446, 63840, 64680, 66880, 68992, 70224, 73920, 74480, 80256, 81928, 85120, 86240, 87780, 89376, 93632, 94080, 100320, 102410, 103488, 111720, 117040, 119168, 122892, 127680, 129360, 133760, 140448, 147840, 148960, 153615, 163856, 172480, 175560, 178752, 187264, 200640, 204820, 206976, 223440, 234080, 245784, 255360, 258720, 280896, 297920, 307230, 327712, 344960, 351120, 357504, 401280, 409640, 446880, 468160, 491568, 517440, 561792, 595840, 614460, 655424, 702240, 819280, 893760, 936320, 983136, 1034880, 1228920, 1310848, 1404480, 1638560, 1787520, 1966272, 2457840, 2808960, 3277120, 3932544, 4915680, 6554240, 9831360, 19662720]

約数ペア:

[(1, 19662720), (2, 9831360), (3, 6554240), (4, 4915680), (5, 3932544), (6, 3277120), (7, 2808960), (8, 2457840), (10, 1966272), (11, 1787520), (12, 1638560), (14, 1404480), (15, 1310848), (16, 1228920), (19, 1034880), (20, 983136), (21, 936320), (22, 893760), (24, 819280), (28, 702240), (30, 655424), (32, 614460), (33, 595840), (35, 561792), (38, 517440), (40, 491568), (42, 468160), (44, 446880), (48, 409640), (49, 401280), (55, 357504), (56, 351120), (57, 344960), (60, 327712), (64, 307230), (66, 297920), (70, 280896), (76, 258720), (77, 255360), (80, 245784), (84, 234080), (88, 223440), (95, 206976), (96, 204820), (98, 200640), (105, 187264), (110, 178752), (112, 175560), (114, 172480), (120, 163856), (128, 153615), (132, 148960), (133, 147840), (140, 140448), (147, 133760), (152, 129360), (154, 127680), (160, 122892), (165, 119168), (168, 117040), (176, 111720), (190, 103488), (192, 102410), (196, 100320), (209, 94080), (210, 93632), (220, 89376), (224, 87780), (228, 86240), (231, 85120), (240, 81928), (245, 80256), (264, 74480), (266, 73920), (280, 70224), (285, 68992), (294, 66880), (304, 64680), (308, 63840), (320, 61446), (330, 59584), (336, 58520), (352, 55860), (380, 51744), (384, 51205), (385, 51072), (392, 50160), (399, 49280), (418, 47040), (420, 46816), (440, 44688), (448, 43890), (456, 43120), (462, 42560), (480, 40964), (490, 40128), (528, 37240), (532, 36960), (539, 36480), (560, 35112), (570, 34496), (588, 33440), (608, 32340), (616, 31920), (627, 31360), (640, 30723), (660, 29792), (665, 29568), (672, 29260), (704, 27930), (735, 26752), (760, 25872), (770, 25536), (784, 25080), (798, 24640), (836, 23520), (840, 23408), (880, 22344), (896, 21945), (912, 21560), (924, 21280), (931, 21120), (960, 20482), (980, 20064), (1045, 18816), (1056, 18620), (1064, 18480), (1078, 18240), (1120, 17556), (1140, 17248), (1155, 17024), (1176, 16720), (1216, 16170), (1232, 15960), (1254, 15680), (1320, 14896), (1330, 14784), (1344, 14630), (1408, 13965), (1463, 13440), (1470, 13376), (1520, 12936), (1540, 12768), (1568, 12540), (1596, 12320), (1617, 12160), (1672, 11760), (1680, 11704), (1760, 11172), (1824, 10780), (1848, 10640), (1862, 10560), (1920, 10241), (1960, 10032), (1995, 9856), (2090, 9408), (2112, 9310), (2128, 9240), (2156, 9120), (2240, 8778), (2280, 8624), (2310, 8512), (2352, 8360), (2432, 8085), (2464, 7980), (2508, 7840), (2640, 7448), (2660, 7392), (2688, 7315), (2695, 7296), (2793, 7040), (2926, 6720), (2940, 6688), (3040, 6468), (3080, 6384), (3135, 6272), (3136, 6270), (3192, 6160), (3234, 6080), (3344, 5880), (3360, 5852), (3520, 5586), (3648, 5390), (3696, 5320), (3724, 5280), (3920, 5016), (3990, 4928), (4180, 4704), (4224, 4655), (4256, 4620), (4312, 4560), (4389, 4480)]