638789760

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{5281}}^1$

素因数の和:5316

約数の個数: 256

約数和(自身を含む): 2586067200

約数和(自身を除く): 1947277440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 2016, 2160, 2240, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 4032, 4320, 4480, 5040, 5281, 5760, 6048, 6720, 7560, 8064, 8640, 10080, 10562, 12096, 13440, 15120, 15843, 17280, 20160, 21124, 24192, 26405, 30240, 31686, 36967, 40320, 42248, 47529, 52810, 60480, 63372, 73934, 79215, 84496, 95058, 105620, 110901, 120960, 126744, 142587, 147868, 158430, 168992, 184835, 190116, 211240, 221802, 237645, 253488, 285174, 295736, 316860, 332703, 337984, 369670, 380232, 422480, 443604, 475290, 506976, 554505, 570348, 591472, 633720, 665406, 675968, 712935, 739340, 760464, 844960, 887208, 950580, 998109, 1013952, 1109010, 1140696, 1182944, 1267440, 1330812, 1425870, 1478680, 1520928, 1663515, 1689920, 1774416, 1901160, 1996218, 2027904, 2218020, 2281392, 2365888, 2534880, 2661624, 2851740, 2957360, 3041856, 3327030, 3379840, 3548832, 3802320, 3992436, 4436040, 4562784, 4731776, 4990545, 5069760, 5323248, 5703480, 5914720, 6083712, 6654060, 7097664, 7604640, 7984872, 8872080, 9125568, 9981090, 10139520, 10646496, 11406960, 11829440, 13308120, 14195328, 15209280, 15969744, 17744160, 18251136, 19962180, 21292992, 22813920, 23658880, 26616240, 30418560, 31939488, 35488320, 39924360, 42585984, 45627840, 53232480, 63878976, 70976640, 79848720, 91255680, 106464960, 127757952, 159697440, 212929920, 319394880, 638789760]

約数ペア:

[(1, 638789760), (2, 319394880), (3, 212929920), (4, 159697440), (5, 127757952), (6, 106464960), (7, 91255680), (8, 79848720), (9, 70976640), (10, 63878976), (12, 53232480), (14, 45627840), (15, 42585984), (16, 39924360), (18, 35488320), (20, 31939488), (21, 30418560), (24, 26616240), (27, 23658880), (28, 22813920), (30, 21292992), (32, 19962180), (35, 18251136), (36, 17744160), (40, 15969744), (42, 15209280), (45, 14195328), (48, 13308120), (54, 11829440), (56, 11406960), (60, 10646496), (63, 10139520), (64, 9981090), (70, 9125568), (72, 8872080), (80, 7984872), (84, 7604640), (90, 7097664), (96, 6654060), (105, 6083712), (108, 5914720), (112, 5703480), (120, 5323248), (126, 5069760), (128, 4990545), (135, 4731776), (140, 4562784), (144, 4436040), (160, 3992436), (168, 3802320), (180, 3548832), (189, 3379840), (192, 3327030), (210, 3041856), (216, 2957360), (224, 2851740), (240, 2661624), (252, 2534880), (270, 2365888), (280, 2281392), (288, 2218020), (315, 2027904), (320, 1996218), (336, 1901160), (360, 1774416), (378, 1689920), (384, 1663515), (420, 1520928), (432, 1478680), (448, 1425870), (480, 1330812), (504, 1267440), (540, 1182944), (560, 1140696), (576, 1109010), (630, 1013952), (640, 998109), (672, 950580), (720, 887208), (756, 844960), (840, 760464), (864, 739340), (896, 712935), (945, 675968), (960, 665406), (1008, 633720), (1080, 591472), (1120, 570348), (1152, 554505), (1260, 506976), (1344, 475290), (1440, 443604), (1512, 422480), (1680, 380232), (1728, 369670), (1890, 337984), (1920, 332703), (2016, 316860), (2160, 295736), (2240, 285174), (2520, 253488), (2688, 237645), (2880, 221802), (3024, 211240), (3360, 190116), (3456, 184835), (3780, 168992), (4032, 158430), (4320, 147868), (4480, 142587), (5040, 126744), (5281, 120960), (5760, 110901), (6048, 105620), (6720, 95058), (7560, 84496), (8064, 79215), (8640, 73934), (10080, 63372), (10562, 60480), (12096, 52810), (13440, 47529), (15120, 42248), (15843, 40320), (17280, 36967), (20160, 31686), (21124, 30240), (24192, 26405)]