81938640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:210

約数の個数: 320

約数和(自身を含む): 325693440

約数和(自身を除く): 243754800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 19, 20, 21, 24, 28, 30, 34, 35, 38, 40, 42, 48, 51, 56, 57, 60, 68, 70, 76, 80, 84, 85, 95, 102, 105, 112, 114, 119, 120, 133, 136, 140, 151, 152, 168, 170, 190, 204, 210, 228, 238, 240, 255, 266, 272, 280, 285, 302, 304, 323, 336, 340, 357, 380, 399, 408, 420, 453, 456, 476, 510, 532, 560, 570, 595, 604, 646, 665, 680, 714, 755, 760, 798, 816, 840, 906, 912, 952, 969, 1020, 1057, 1064, 1140, 1190, 1208, 1292, 1330, 1360, 1428, 1510, 1520, 1596, 1615, 1680, 1785, 1812, 1904, 1938, 1995, 2040, 2114, 2128, 2261, 2265, 2280, 2380, 2416, 2567, 2584, 2660, 2856, 2869, 3020, 3171, 3192, 3230, 3570, 3624, 3876, 3990, 4080, 4228, 4522, 4530, 4560, 4760, 4845, 5134, 5168, 5285, 5320, 5712, 5738, 6040, 6342, 6384, 6460, 6783, 7140, 7248, 7701, 7752, 7980, 8456, 8607, 9044, 9060, 9520, 9690, 10268, 10570, 10640, 11305, 11476, 12080, 12684, 12835, 12920, 13566, 14280, 14345, 15402, 15504, 15855, 15960, 16912, 17214, 17969, 18088, 18120, 19380, 20083, 20536, 21140, 22610, 22952, 25368, 25670, 25840, 27132, 28560, 28690, 30804, 31710, 31920, 33915, 34428, 35938, 36176, 36240, 38505, 38760, 40166, 41072, 42280, 43035, 45220, 45904, 48773, 50736, 51340, 53907, 54264, 57380, 60249, 61608, 63420, 67830, 68856, 71876, 77010, 77520, 80332, 84560, 86070, 89845, 90440, 97546, 100415, 102680, 107814, 108528, 114760, 120498, 123216, 126840, 135660, 137712, 143752, 146319, 154020, 160664, 172140, 179690, 180880, 195092, 200830, 205360, 215628, 229520, 240996, 243865, 253680, 269535, 271320, 287504, 292638, 301245, 308040, 321328, 341411, 344280, 359380, 390184, 401660, 431256, 481992, 487730, 539070, 542640, 585276, 602490, 616080, 682822, 688560, 718760, 731595, 780368, 803320, 862512, 963984, 975460, 1024233, 1078140, 1170552, 1204980, 1365644, 1437520, 1463190, 1606640, 1707055, 1950920, 2048466, 2156280, 2341104, 2409960, 2731288, 2926380, 3414110, 3901840, 4096932, 4312560, 4819920, 5121165, 5462576, 5852760, 6828220, 8193864, 10242330, 11705520, 13656440, 16387728, 20484660, 27312880, 40969320, 81938640]

約数ペア:

[(1, 81938640), (2, 40969320), (3, 27312880), (4, 20484660), (5, 16387728), (6, 13656440), (7, 11705520), (8, 10242330), (10, 8193864), (12, 6828220), (14, 5852760), (15, 5462576), (16, 5121165), (17, 4819920), (19, 4312560), (20, 4096932), (21, 3901840), (24, 3414110), (28, 2926380), (30, 2731288), (34, 2409960), (35, 2341104), (38, 2156280), (40, 2048466), (42, 1950920), (48, 1707055), (51, 1606640), (56, 1463190), (57, 1437520), (60, 1365644), (68, 1204980), (70, 1170552), (76, 1078140), (80, 1024233), (84, 975460), (85, 963984), (95, 862512), (102, 803320), (105, 780368), (112, 731595), (114, 718760), (119, 688560), (120, 682822), (133, 616080), (136, 602490), (140, 585276), (151, 542640), (152, 539070), (168, 487730), (170, 481992), (190, 431256), (204, 401660), (210, 390184), (228, 359380), (238, 344280), (240, 341411), (255, 321328), (266, 308040), (272, 301245), (280, 292638), (285, 287504), (302, 271320), (304, 269535), (323, 253680), (336, 243865), (340, 240996), (357, 229520), (380, 215628), (399, 205360), (408, 200830), (420, 195092), (453, 180880), (456, 179690), (476, 172140), (510, 160664), (532, 154020), (560, 146319), (570, 143752), (595, 137712), (604, 135660), (646, 126840), (665, 123216), (680, 120498), (714, 114760), (755, 108528), (760, 107814), (798, 102680), (816, 100415), (840, 97546), (906, 90440), (912, 89845), (952, 86070), (969, 84560), (1020, 80332), (1057, 77520), (1064, 77010), (1140, 71876), (1190, 68856), (1208, 67830), (1292, 63420), (1330, 61608), (1360, 60249), (1428, 57380), (1510, 54264), (1520, 53907), (1596, 51340), (1615, 50736), (1680, 48773), (1785, 45904), (1812, 45220), (1904, 43035), (1938, 42280), (1995, 41072), (2040, 40166), (2114, 38760), (2128, 38505), (2261, 36240), (2265, 36176), (2280, 35938), (2380, 34428), (2416, 33915), (2567, 31920), (2584, 31710), (2660, 30804), (2856, 28690), (2869, 28560), (3020, 27132), (3171, 25840), (3192, 25670), (3230, 25368), (3570, 22952), (3624, 22610), (3876, 21140), (3990, 20536), (4080, 20083), (4228, 19380), (4522, 18120), (4530, 18088), (4560, 17969), (4760, 17214), (4845, 16912), (5134, 15960), (5168, 15855), (5285, 15504), (5320, 15402), (5712, 14345), (5738, 14280), (6040, 13566), (6342, 12920), (6384, 12835), (6460, 12684), (6783, 12080), (7140, 11476), (7248, 11305), (7701, 10640), (7752, 10570), (7980, 10268), (8456, 9690), (8607, 9520), (9044, 9060)]