21641760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:160

約数の個数: 288

約数和(自身を含む): 89631360

約数和(自身を除く): 67989600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 32, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 96, 105, 112, 113, 114, 120, 126, 133, 140, 144, 152, 160, 168, 171, 180, 190, 210, 224, 226, 228, 240, 252, 266, 280, 285, 288, 304, 315, 336, 339, 342, 360, 380, 399, 420, 452, 456, 480, 504, 532, 560, 565, 570, 608, 630, 665, 672, 678, 684, 720, 760, 791, 798, 840, 855, 904, 912, 1008, 1017, 1064, 1120, 1130, 1140, 1197, 1260, 1330, 1356, 1368, 1440, 1520, 1582, 1596, 1680, 1695, 1710, 1808, 1824, 1995, 2016, 2034, 2128, 2147, 2260, 2280, 2373, 2394, 2520, 2660, 2712, 2736, 3040, 3164, 3192, 3360, 3390, 3420, 3616, 3955, 3990, 4068, 4256, 4294, 4520, 4560, 4746, 4788, 5040, 5085, 5320, 5424, 5472, 5985, 6328, 6384, 6441, 6780, 6840, 7119, 7910, 7980, 8136, 8588, 9040, 9120, 9492, 9576, 10080, 10170, 10640, 10735, 10848, 11865, 11970, 12656, 12768, 12882, 13560, 13680, 14238, 15029, 15820, 15960, 16272, 17176, 18080, 18984, 19152, 19323, 20340, 21280, 21470, 23730, 23940, 25312, 25764, 27120, 27360, 28476, 30058, 31640, 31920, 32205, 32544, 34352, 35595, 37968, 38304, 38646, 40680, 42940, 45087, 47460, 47880, 51528, 54240, 56952, 60116, 63280, 63840, 64410, 68704, 71190, 75145, 75936, 77292, 81360, 85880, 90174, 94920, 95760, 96615, 103056, 113904, 120232, 126560, 128820, 135261, 142380, 150290, 154584, 162720, 171760, 180348, 189840, 191520, 193230, 206112, 225435, 227808, 240464, 257640, 270522, 284760, 300580, 309168, 343520, 360696, 379680, 386460, 450870, 480928, 515280, 541044, 569520, 601160, 618336, 676305, 721392, 772920, 901740, 1030560, 1082088, 1139040, 1202320, 1352610, 1442784, 1545840, 1803480, 2164176, 2404640, 2705220, 3091680, 3606960, 4328352, 5410440, 7213920, 10820880, 21641760]

約数ペア:

[(1, 21641760), (2, 10820880), (3, 7213920), (4, 5410440), (5, 4328352), (6, 3606960), (7, 3091680), (8, 2705220), (9, 2404640), (10, 2164176), (12, 1803480), (14, 1545840), (15, 1442784), (16, 1352610), (18, 1202320), (19, 1139040), (20, 1082088), (21, 1030560), (24, 901740), (28, 772920), (30, 721392), (32, 676305), (35, 618336), (36, 601160), (38, 569520), (40, 541044), (42, 515280), (45, 480928), (48, 450870), (56, 386460), (57, 379680), (60, 360696), (63, 343520), (70, 309168), (72, 300580), (76, 284760), (80, 270522), (84, 257640), (90, 240464), (95, 227808), (96, 225435), (105, 206112), (112, 193230), (113, 191520), (114, 189840), (120, 180348), (126, 171760), (133, 162720), (140, 154584), (144, 150290), (152, 142380), (160, 135261), (168, 128820), (171, 126560), (180, 120232), (190, 113904), (210, 103056), (224, 96615), (226, 95760), (228, 94920), (240, 90174), (252, 85880), (266, 81360), (280, 77292), (285, 75936), (288, 75145), (304, 71190), (315, 68704), (336, 64410), (339, 63840), (342, 63280), (360, 60116), (380, 56952), (399, 54240), (420, 51528), (452, 47880), (456, 47460), (480, 45087), (504, 42940), (532, 40680), (560, 38646), (565, 38304), (570, 37968), (608, 35595), (630, 34352), (665, 32544), (672, 32205), (678, 31920), (684, 31640), (720, 30058), (760, 28476), (791, 27360), (798, 27120), (840, 25764), (855, 25312), (904, 23940), (912, 23730), (1008, 21470), (1017, 21280), (1064, 20340), (1120, 19323), (1130, 19152), (1140, 18984), (1197, 18080), (1260, 17176), (1330, 16272), (1356, 15960), (1368, 15820), (1440, 15029), (1520, 14238), (1582, 13680), (1596, 13560), (1680, 12882), (1695, 12768), (1710, 12656), (1808, 11970), (1824, 11865), (1995, 10848), (2016, 10735), (2034, 10640), (2128, 10170), (2147, 10080), (2260, 9576), (2280, 9492), (2373, 9120), (2394, 9040), (2520, 8588), (2660, 8136), (2712, 7980), (2736, 7910), (3040, 7119), (3164, 6840), (3192, 6780), (3360, 6441), (3390, 6384), (3420, 6328), (3616, 5985), (3955, 5472), (3990, 5424), (4068, 5320), (4256, 5085), (4294, 5040), (4520, 4788), (4560, 4746)]