645390720

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:84

約数の個数: 512

約数和(自身を含む): 2621808000

約数和(自身を除く): 1976417280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 27, 30, 32, 34, 36, 39, 40, 45, 48, 51, 52, 54, 60, 64, 65, 68, 72, 78, 80, 85, 90, 96, 102, 104, 108, 117, 120, 128, 130, 135, 136, 144, 153, 156, 160, 169, 170, 180, 192, 195, 204, 208, 216, 221, 234, 240, 255, 260, 270, 272, 288, 306, 312, 320, 338, 340, 351, 360, 384, 390, 408, 416, 432, 442, 459, 468, 480, 507, 510, 520, 540, 544, 576, 585, 612, 624, 640, 663, 676, 680, 702, 720, 765, 780, 816, 832, 845, 864, 884, 918, 936, 960, 1014, 1020, 1040, 1080, 1088, 1105, 1152, 1170, 1224, 1248, 1326, 1352, 1360, 1404, 1440, 1521, 1530, 1560, 1632, 1664, 1690, 1728, 1755, 1768, 1836, 1872, 1920, 1989, 2028, 2040, 2080, 2160, 2176, 2197, 2210, 2295, 2340, 2448, 2496, 2535, 2652, 2704, 2720, 2808, 2873, 2880, 3042, 3060, 3120, 3264, 3315, 3380, 3456, 3510, 3536, 3672, 3744, 3978, 4056, 4080, 4160, 4320, 4394, 4420, 4563, 4590, 4680, 4896, 4992, 5070, 5304, 5408, 5440, 5616, 5746, 5760, 5967, 6084, 6120, 6240, 6528, 6591, 6630, 6760, 7020, 7072, 7344, 7488, 7605, 7956, 8112, 8160, 8320, 8619, 8640, 8788, 8840, 9126, 9180, 9360, 9792, 9945, 10140, 10608, 10816, 10880, 10985, 11232, 11492, 11934, 12168, 12240, 12480, 13182, 13260, 13520, 14040, 14144, 14365, 14688, 14976, 15210, 15912, 16224, 16320, 17238, 17280, 17576, 17680, 18252, 18360, 18720, 19584, 19773, 19890, 20280, 21216, 21632, 21970, 22464, 22815, 22984, 23868, 24336, 24480, 24960, 25857, 26364, 26520, 27040, 28080, 28288, 28730, 29376, 29835, 30420, 31824, 32448, 32640, 32955, 34476, 35152, 35360, 36504, 36720, 37349, 37440, 39546, 39780, 40560, 42432, 43095, 43940, 44928, 45630, 45968, 47736, 48672, 48960, 51714, 52728, 53040, 54080, 56160, 57460, 58752, 59319, 59670, 60840, 63648, 64896, 65910, 68952, 70304, 70720, 73008, 73440, 74698, 74880, 77571, 79092, 79560, 81120, 84864, 86190, 87880, 91260, 91936, 95472, 97344, 97920, 98865, 103428, 105456, 106080, 108160, 112047, 112320, 114920, 118638, 119340, 121680, 127296, 129285, 131820, 137904, 140608, 141440, 146016, 146880, 149396, 155142, 158184, 159120, 162240, 172380, 175760, 182520, 183872, 186745, 190944, 194688, 197730, 206856, 210912, 212160, 224094, 224640, 229840, 237276, 238680, 243360, 254592, 258570, 263640, 275808, 281216, 292032, 293760, 296595, 298792, 310284, 316368, 318240, 324480, 336141, 344760, 351520, 365040, 367744, 373490, 381888, 387855, 395460, 413712, 421824, 424320, 448188, 459680, 474552, 477360, 486720, 517140, 527280, 551616, 560235, 584064, 593190, 597584, 620568, 632736, 636480, 672282, 689520, 703040, 730080, 746980, 763776, 775710, 790920, 827424, 843648, 896376, 919360, 949104, 954720, 973440, 1008423, 1034280, 1054560, 1103232, 1120470, 1186380, 1195168, 1241136, 1265472, 1272960, 1344564, 1379040, 1406080, 1460160, 1493960, 1551420, 1581840, 1654848, 1680705, 1792752, 1838720, 1898208, 1909440, 2016846, 2068560, 2109120, 2240940, 2372760, 2390336, 2482272, 2530944, 2689128, 2758080, 2920320, 2987920, 3102840, 3163680, 3309696, 3361410, 3585504, 3796416, 3818880, 4033692, 4137120, 4218240, 4481880, 4745520, 4780672, 4964544, 5042115, 5378256, 5516160, 5975840, 6205680, 6327360, 6722820, 7171008, 7592832, 8067384, 8274240, 8963760, 9491040, 9929088, 10084230, 10756512, 11951680, 12411360, 12654720, 13445640, 14342016, 16134768, 16548480, 17927520, 18982080, 20168460, 21513024, 23903360, 24822720, 26891280, 32269536, 35855040, 37964160, 40336920, 43026048, 49645440, 53782560, 64539072, 71710080, 80673840, 107565120, 129078144, 161347680, 215130240, 322695360, 645390720]

約数ペア:

[(1, 645390720), (2, 322695360), (3, 215130240), (4, 161347680), (5, 129078144), (6, 107565120), (8, 80673840), (9, 71710080), (10, 64539072), (12, 53782560), (13, 49645440), (15, 43026048), (16, 40336920), (17, 37964160), (18, 35855040), (20, 32269536), (24, 26891280), (26, 24822720), (27, 23903360), (30, 21513024), (32, 20168460), (34, 18982080), (36, 17927520), (39, 16548480), (40, 16134768), (45, 14342016), (48, 13445640), (51, 12654720), (52, 12411360), (54, 11951680), (60, 10756512), (64, 10084230), (65, 9929088), (68, 9491040), (72, 8963760), (78, 8274240), (80, 8067384), (85, 7592832), (90, 7171008), (96, 6722820), (102, 6327360), (104, 6205680), (108, 5975840), (117, 5516160), (120, 5378256), (128, 5042115), (130, 4964544), (135, 4780672), (136, 4745520), (144, 4481880), (153, 4218240), (156, 4137120), (160, 4033692), (169, 3818880), (170, 3796416), (180, 3585504), (192, 3361410), (195, 3309696), (204, 3163680), (208, 3102840), (216, 2987920), (221, 2920320), (234, 2758080), (240, 2689128), (255, 2530944), (260, 2482272), (270, 2390336), (272, 2372760), (288, 2240940), (306, 2109120), (312, 2068560), (320, 2016846), (338, 1909440), (340, 1898208), (351, 1838720), (360, 1792752), (384, 1680705), (390, 1654848), (408, 1581840), (416, 1551420), (432, 1493960), (442, 1460160), (459, 1406080), (468, 1379040), (480, 1344564), (507, 1272960), (510, 1265472), (520, 1241136), (540, 1195168), (544, 1186380), (576, 1120470), (585, 1103232), (612, 1054560), (624, 1034280), (640, 1008423), (663, 973440), (676, 954720), (680, 949104), (702, 919360), (720, 896376), (765, 843648), (780, 827424), (816, 790920), (832, 775710), (845, 763776), (864, 746980), (884, 730080), (918, 703040), (936, 689520), (960, 672282), (1014, 636480), (1020, 632736), (1040, 620568), (1080, 597584), (1088, 593190), (1105, 584064), (1152, 560235), (1170, 551616), (1224, 527280), (1248, 517140), (1326, 486720), (1352, 477360), (1360, 474552), (1404, 459680), (1440, 448188), (1521, 424320), (1530, 421824), (1560, 413712), (1632, 395460), (1664, 387855), (1690, 381888), (1728, 373490), (1755, 367744), (1768, 365040), (1836, 351520), (1872, 344760), (1920, 336141), (1989, 324480), (2028, 318240), (2040, 316368), (2080, 310284), (2160, 298792), (2176, 296595), (2197, 293760), (2210, 292032), (2295, 281216), (2340, 275808), (2448, 263640), (2496, 258570), (2535, 254592), (2652, 243360), (2704, 238680), (2720, 237276), (2808, 229840), (2873, 224640), (2880, 224094), (3042, 212160), (3060, 210912), (3120, 206856), (3264, 197730), (3315, 194688), (3380, 190944), (3456, 186745), (3510, 183872), (3536, 182520), (3672, 175760), (3744, 172380), (3978, 162240), (4056, 159120), (4080, 158184), (4160, 155142), (4320, 149396), (4394, 146880), (4420, 146016), (4563, 141440), (4590, 140608), (4680, 137904), (4896, 131820), (4992, 129285), (5070, 127296), (5304, 121680), (5408, 119340), (5440, 118638), (5616, 114920), (5746, 112320), (5760, 112047), (5967, 108160), (6084, 106080), (6120, 105456), (6240, 103428), (6528, 98865), (6591, 97920), (6630, 97344), (6760, 95472), (7020, 91936), (7072, 91260), (7344, 87880), (7488, 86190), (7605, 84864), (7956, 81120), (8112, 79560), (8160, 79092), (8320, 77571), (8619, 74880), (8640, 74698), (8788, 73440), (8840, 73008), (9126, 70720), (9180, 70304), (9360, 68952), (9792, 65910), (9945, 64896), (10140, 63648), (10608, 60840), (10816, 59670), (10880, 59319), (10985, 58752), (11232, 57460), (11492, 56160), (11934, 54080), (12168, 53040), (12240, 52728), (12480, 51714), (13182, 48960), (13260, 48672), (13520, 47736), (14040, 45968), (14144, 45630), (14365, 44928), (14688, 43940), (14976, 43095), (15210, 42432), (15912, 40560), (16224, 39780), (16320, 39546), (17238, 37440), (17280, 37349), (17576, 36720), (17680, 36504), (18252, 35360), (18360, 35152), (18720, 34476), (19584, 32955), (19773, 32640), (19890, 32448), (20280, 31824), (21216, 30420), (21632, 29835), (21970, 29376), (22464, 28730), (22815, 28288), (22984, 28080), (23868, 27040), (24336, 26520), (24480, 26364), (24960, 25857)]