257785920

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:722

約数の個数: 336

約数和(自身を含む): 1068263040

約数和(自身を除く): 810477120

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, 64, 70, 72, 76, 80, 84, 90, 95, 96, 105, 112, 114, 120, 126, 133, 140, 144, 152, 160, 168, 171, 180, 190, 192, 210, 224, 228, 240, 252, 266, 280, 285, 288, 304, 315, 320, 336, 342, 360, 380, 399, 420, 448, 456, 480, 504, 532, 560, 570, 576, 608, 630, 665, 672, 673, 684, 720, 760, 798, 840, 855, 912, 960, 1008, 1064, 1120, 1140, 1197, 1216, 1260, 1330, 1344, 1346, 1368, 1440, 1520, 1596, 1680, 1710, 1824, 1995, 2016, 2019, 2128, 2240, 2280, 2394, 2520, 2660, 2692, 2736, 2880, 3040, 3192, 3360, 3365, 3420, 3648, 3990, 4032, 4038, 4256, 4560, 4711, 4788, 5040, 5320, 5384, 5472, 5985, 6057, 6080, 6384, 6720, 6730, 6840, 7980, 8076, 8512, 9120, 9422, 9576, 10080, 10095, 10640, 10768, 10944, 11970, 12114, 12768, 12787, 13460, 13680, 14133, 15960, 16152, 18240, 18844, 19152, 20160, 20190, 21280, 21536, 23555, 23940, 24228, 25536, 25574, 26920, 27360, 28266, 30285, 31920, 32304, 37688, 38304, 38361, 40380, 42399, 42560, 43072, 47110, 47880, 48456, 51148, 53840, 54720, 56532, 60570, 63840, 63935, 64608, 70665, 75376, 76608, 76722, 80760, 84798, 89509, 94220, 95760, 96912, 102296, 107680, 113064, 115083, 121140, 127680, 127870, 129216, 141330, 150752, 153444, 161520, 169596, 179018, 188440, 191520, 191805, 193824, 204592, 211995, 215360, 226128, 230166, 242280, 255740, 268527, 282660, 301504, 306888, 323040, 339192, 358036, 376880, 383040, 383610, 387648, 409184, 423990, 447545, 452256, 460332, 484560, 511480, 537054, 565320, 575415, 613776, 646080, 678384, 716072, 753760, 767220, 805581, 818368, 847980, 895090, 904512, 920664, 969120, 1022960, 1074108, 1130640, 1150830, 1227552, 1342635, 1356768, 1432144, 1507520, 1534440, 1611162, 1695960, 1790180, 1841328, 1938240, 2045920, 2148216, 2261280, 2301660, 2455104, 2685270, 2713536, 2864288, 3068880, 3222324, 3391920, 3580360, 3682656, 4027905, 4091840, 4296432, 4522560, 4603320, 5370540, 5728576, 6137760, 6444648, 6783840, 7160720, 7365312, 8055810, 8592864, 9206640, 10741080, 12275520, 12889296, 13567680, 14321440, 16111620, 17185728, 18413280, 21482160, 25778592, 28642880, 32223240, 36826560, 42964320, 51557184, 64446480, 85928640, 128892960, 257785920]

約数ペア:

[(1, 257785920), (2, 128892960), (3, 85928640), (4, 64446480), (5, 51557184), (6, 42964320), (7, 36826560), (8, 32223240), (9, 28642880), (10, 25778592), (12, 21482160), (14, 18413280), (15, 17185728), (16, 16111620), (18, 14321440), (19, 13567680), (20, 12889296), (21, 12275520), (24, 10741080), (28, 9206640), (30, 8592864), (32, 8055810), (35, 7365312), (36, 7160720), (38, 6783840), (40, 6444648), (42, 6137760), (45, 5728576), (48, 5370540), (56, 4603320), (57, 4522560), (60, 4296432), (63, 4091840), (64, 4027905), (70, 3682656), (72, 3580360), (76, 3391920), (80, 3222324), (84, 3068880), (90, 2864288), (95, 2713536), (96, 2685270), (105, 2455104), (112, 2301660), (114, 2261280), (120, 2148216), (126, 2045920), (133, 1938240), (140, 1841328), (144, 1790180), (152, 1695960), (160, 1611162), (168, 1534440), (171, 1507520), (180, 1432144), (190, 1356768), (192, 1342635), (210, 1227552), (224, 1150830), (228, 1130640), (240, 1074108), (252, 1022960), (266, 969120), (280, 920664), (285, 904512), (288, 895090), (304, 847980), (315, 818368), (320, 805581), (336, 767220), (342, 753760), (360, 716072), (380, 678384), (399, 646080), (420, 613776), (448, 575415), (456, 565320), (480, 537054), (504, 511480), (532, 484560), (560, 460332), (570, 452256), (576, 447545), (608, 423990), (630, 409184), (665, 387648), (672, 383610), (673, 383040), (684, 376880), (720, 358036), (760, 339192), (798, 323040), (840, 306888), (855, 301504), (912, 282660), (960, 268527), (1008, 255740), (1064, 242280), (1120, 230166), (1140, 226128), (1197, 215360), (1216, 211995), (1260, 204592), (1330, 193824), (1344, 191805), (1346, 191520), (1368, 188440), (1440, 179018), (1520, 169596), (1596, 161520), (1680, 153444), (1710, 150752), (1824, 141330), (1995, 129216), (2016, 127870), (2019, 127680), (2128, 121140), (2240, 115083), (2280, 113064), (2394, 107680), (2520, 102296), (2660, 96912), (2692, 95760), (2736, 94220), (2880, 89509), (3040, 84798), (3192, 80760), (3360, 76722), (3365, 76608), (3420, 75376), (3648, 70665), (3990, 64608), (4032, 63935), (4038, 63840), (4256, 60570), (4560, 56532), (4711, 54720), (4788, 53840), (5040, 51148), (5320, 48456), (5384, 47880), (5472, 47110), (5985, 43072), (6057, 42560), (6080, 42399), (6384, 40380), (6720, 38361), (6730, 38304), (6840, 37688), (7980, 32304), (8076, 31920), (8512, 30285), (9120, 28266), (9422, 27360), (9576, 26920), (10080, 25574), (10095, 25536), (10640, 24228), (10768, 23940), (10944, 23555), (11970, 21536), (12114, 21280), (12768, 20190), (12787, 20160), (13460, 19152), (13680, 18844), (14133, 18240), (15960, 16152)]