420779520

素因数分解:

$2^9\times 3^2\times 5^1\times 7^1\times {\mathrm{2609}}^1$

素因数の和:2645

約数の個数: 240

約数和(自身を含む): 1666098720

約数和(自身を除く): 1245319200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2609, 2688, 2880, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5218, 5376, 5760, 6720, 7680, 7827, 8064, 8960, 10080, 10436, 10752, 11520, 13045, 13440, 15654, 16128, 17920, 18263, 20160, 20872, 23040, 23481, 26090, 26880, 31308, 32256, 36526, 39135, 40320, 41744, 46962, 52180, 53760, 54789, 62616, 73052, 78270, 80640, 83488, 91315, 93924, 104360, 109578, 117405, 125232, 146104, 156540, 161280, 164367, 166976, 182630, 187848, 208720, 219156, 234810, 250464, 273945, 292208, 313080, 328734, 333952, 365260, 375696, 417440, 438312, 469620, 500928, 547890, 584416, 626160, 657468, 667904, 730520, 751392, 821835, 834880, 876624, 939240, 1001856, 1095780, 1168832, 1252320, 1314936, 1335808, 1461040, 1502784, 1643670, 1669760, 1753248, 1878480, 2003712, 2191560, 2337664, 2504640, 2629872, 2922080, 3005568, 3287340, 3339520, 3506496, 3756960, 4007424, 4383120, 4675328, 5009280, 5259744, 5844160, 6011136, 6574680, 6679040, 7012992, 7513920, 8766240, 9350656, 10018560, 10519488, 11688320, 12022272, 13149360, 14025984, 15027840, 17532480, 20037120, 21038976, 23376640, 26298720, 28051968, 30055680, 35064960, 42077952, 46753280, 52597440, 60111360, 70129920, 84155904, 105194880, 140259840, 210389760, 420779520]

約数ペア:

[(1, 420779520), (2, 210389760), (3, 140259840), (4, 105194880), (5, 84155904), (6, 70129920), (7, 60111360), (8, 52597440), (9, 46753280), (10, 42077952), (12, 35064960), (14, 30055680), (15, 28051968), (16, 26298720), (18, 23376640), (20, 21038976), (21, 20037120), (24, 17532480), (28, 15027840), (30, 14025984), (32, 13149360), (35, 12022272), (36, 11688320), (40, 10519488), (42, 10018560), (45, 9350656), (48, 8766240), (56, 7513920), (60, 7012992), (63, 6679040), (64, 6574680), (70, 6011136), (72, 5844160), (80, 5259744), (84, 5009280), (90, 4675328), (96, 4383120), (105, 4007424), (112, 3756960), (120, 3506496), (126, 3339520), (128, 3287340), (140, 3005568), (144, 2922080), (160, 2629872), (168, 2504640), (180, 2337664), (192, 2191560), (210, 2003712), (224, 1878480), (240, 1753248), (252, 1669760), (256, 1643670), (280, 1502784), (288, 1461040), (315, 1335808), (320, 1314936), (336, 1252320), (360, 1168832), (384, 1095780), (420, 1001856), (448, 939240), (480, 876624), (504, 834880), (512, 821835), (560, 751392), (576, 730520), (630, 667904), (640, 657468), (672, 626160), (720, 584416), (768, 547890), (840, 500928), (896, 469620), (960, 438312), (1008, 417440), (1120, 375696), (1152, 365260), (1260, 333952), (1280, 328734), (1344, 313080), (1440, 292208), (1536, 273945), (1680, 250464), (1792, 234810), (1920, 219156), (2016, 208720), (2240, 187848), (2304, 182630), (2520, 166976), (2560, 164367), (2609, 161280), (2688, 156540), (2880, 146104), (3360, 125232), (3584, 117405), (3840, 109578), (4032, 104360), (4480, 93924), (4608, 91315), (5040, 83488), (5218, 80640), (5376, 78270), (5760, 73052), (6720, 62616), (7680, 54789), (7827, 53760), (8064, 52180), (8960, 46962), (10080, 41744), (10436, 40320), (10752, 39135), (11520, 36526), (13045, 32256), (13440, 31308), (15654, 26880), (16128, 26090), (17920, 23481), (18263, 23040), (20160, 20872)]