19997228160

素因数分解:

$2^7\times 3^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 1024

約数和(自身を含む): 88805606400

約数和(自身を除く): 68808378240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 27, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 54, 56, 60, 63, 64, 65, 70, 72, 78, 80, 81, 84, 90, 91, 96, 104, 105, 108, 112, 117, 120, 126, 128, 130, 135, 140, 144, 156, 157, 160, 162, 168, 180, 182, 189, 192, 195, 208, 210, 216, 224, 234, 240, 243, 252, 260, 270, 273, 280, 288, 312, 314, 315, 320, 324, 336, 351, 360, 364, 378, 384, 390, 405, 416, 420, 432, 448, 455, 468, 471, 480, 486, 504, 520, 540, 546, 560, 567, 576, 585, 624, 628, 630, 640, 648, 672, 702, 720, 728, 729, 756, 780, 785, 810, 819, 832, 840, 864, 896, 910, 936, 942, 945, 960, 972, 1008, 1040, 1053, 1080, 1092, 1099, 1120, 1134, 1152, 1170, 1215, 1248, 1256, 1260, 1296, 1344, 1365, 1404, 1413, 1440, 1456, 1458, 1512, 1560, 1570, 1620, 1638, 1664, 1680, 1701, 1728, 1755, 1820, 1872, 1884, 1890, 1920, 1944, 2016, 2041, 2080, 2106, 2160, 2184, 2187, 2198, 2240, 2268, 2340, 2355, 2430, 2457, 2496, 2512, 2520, 2592, 2688, 2730, 2808, 2826, 2835, 2880, 2912, 2916, 3024, 3120, 3140, 3159, 3240, 3276, 3297, 3360, 3402, 3456, 3510, 3640, 3645, 3744, 3768, 3780, 3888, 4032, 4082, 4095, 4160, 4212, 4239, 4320, 4368, 4374, 4396, 4480, 4536, 4680, 4710, 4860, 4914, 4992, 5024, 5040, 5103, 5184, 5265, 5460, 5495, 5616, 5652, 5670, 5760, 5824, 5832, 6048, 6123, 6240, 6280, 6318, 6480, 6552, 6594, 6720, 6804, 7020, 7065, 7280, 7290, 7371, 7488, 7536, 7560, 7776, 8064, 8164, 8190, 8320, 8424, 8478, 8505, 8640, 8736, 8748, 8792, 9072, 9360, 9420, 9477, 9720, 9828, 9891, 10048, 10080, 10205, 10206, 10368, 10530, 10920, 10935, 10990, 11232, 11304, 11340, 11648, 11664, 12096, 12246, 12285, 12480, 12560, 12636, 12717, 12960, 13104, 13188, 13440, 13608, 14040, 14130, 14287, 14560, 14580, 14742, 14976, 15072, 15120, 15309, 15552, 15795, 16328, 16380, 16485, 16848, 16956, 17010, 17280, 17472, 17496, 17584, 18144, 18369, 18720, 18840, 18954, 19440, 19656, 19782, 20096, 20160, 20410, 20412, 21060, 21195, 21840, 21870, 21980, 22113, 22464, 22608, 22680, 23328, 24192, 24492, 24570, 24960, 25120, 25272, 25434, 25515, 25920, 26208, 26376, 27216, 28080, 28260, 28431, 28574, 29120, 29160, 29484, 29673, 30144, 30240, 30615, 30618, 31104, 31590, 32656, 32760, 32970, 33696, 33912, 34020, 34944, 34992, 35168, 36288, 36738, 36855, 37440, 37680, 37908, 38151, 38880, 39312, 39564, 40320, 40820, 40824, 42120, 42390, 42861, 43680, 43740, 43960, 44226, 44928, 45216, 45360, 46656, 47385, 48984, 49140, 49455, 50240, 50544, 50868, 51030, 51840, 52416, 52752, 54432, 55107, 56160, 56520, 56862, 57148, 58240, 58320, 58968, 59346, 60288, 60480, 61230, 61236, 63180, 63585, 65312, 65520, 65940, 66339, 67392, 67824, 68040, 69984, 70336, 71435, 72576, 73476, 73710, 74880, 75360, 75816, 76302, 76545, 77760, 78624, 79128, 81640, 81648, 84240, 84780, 85722, 87360, 87480, 87920, 88452, 89019, 90432, 90720, 91845, 93312, 94770, 97968, 98280, 98910, 100480, 101088, 101736, 102060, 104832, 105504, 108864, 110214, 110565, 112320, 113040, 113724, 114296, 114453, 116640, 117936, 118692, 120960, 122460, 122472, 126360, 127170, 128583, 130624, 131040, 131880, 132678, 134784, 135648, 136080, 139968, 140672, 142155, 142870, 146952, 147420, 148365, 150720, 151632, 152604, 153090, 155520, 157248, 158256, 163280, 163296, 165321, 168480, 169560, 171444, 174720, 174960, 175840, 176904, 178038, 180864, 181440, 183690, 189540, 190755, 195936, 196560, 197820, 199017, 202176, 203472, 204120, 211008, 214305, 217728, 220428, 221130, 224640, 226080, 227448, 228592, 228906, 233280, 235872, 237384, 244920, 244944, 252720, 254340, 257166, 261248, 262080, 263760, 265356, 267057, 271296, 272160, 275535, 279936, 284310, 285740, 293904, 294840, 296730, 301440, 303264, 305208, 306180, 314496, 316512, 326560, 326592, 330642, 331695, 336960, 339120, 342888, 343359, 349920, 351680, 353808, 356076, 362880, 367380, 379080, 381510, 385749, 391872, 393120, 395640, 398034, 404352, 406944, 408240, 422016, 428610, 440856, 442260, 445095, 452160, 454896, 457184, 457812, 466560, 471744, 474768, 489840, 489888, 495963, 505440, 508680, 514332, 524160, 527520, 530712, 534114, 542592, 544320, 551070, 568620, 571480, 572265, 587808, 589680, 593460, 606528, 610416, 612360, 633024, 642915, 653120, 653184, 661284, 663390, 673920, 678240, 685776, 686718, 699840, 703360, 707616, 712152, 734760, 758160, 763020, 771498, 783744, 786240, 791280, 796068, 801171, 813888, 816480, 826605, 857220, 881712, 884520, 890190, 904320, 909792, 914368, 915624, 943488, 949536, 979680, 979776, 991926, 995085, 1010880, 1017360, 1028664, 1055040, 1061424, 1068228, 1088640, 1102140, 1137240, 1142960, 1144530, 1157247, 1175616, 1179360, 1186920, 1213056, 1220832, 1224720, 1266048, 1285830, 1306240, 1322568, 1326780, 1335285, 1356480, 1371552, 1373436, 1399680, 1415232, 1424304, 1469520, 1487889, 1516320, 1526040, 1542996, 1572480, 1582560, 1592136, 1602342, 1627776, 1632960, 1653210, 1714440, 1716795, 1763424, 1769040, 1780380, 1819584, 1828736, 1831248, 1899072, 1928745, 1959360, 1959552, 1983852, 1990170, 2021760, 2034720, 2057328, 2110080, 2122848, 2136456, 2204280, 2274480, 2285920, 2289060, 2314494, 2351232, 2358720, 2373840, 2403513, 2441664, 2449440, 2479815, 2571660, 2645136, 2653560, 2670570, 2712960, 2743104, 2746872, 2830464, 2848608, 2939040, 2975778, 3032640, 3052080, 3085992, 3165120, 3184272, 3204684, 3265920, 3306420, 3428880, 3433590, 3471741, 3526848, 3538080, 3560760, 3639168, 3662496, 3798144, 3857490, 3918720, 3967704, 3980340, 4005855, 4069440, 4114656, 4245696, 4272912, 4408560, 4463667, 4548960, 4571840, 4578120, 4628988, 4717440, 4747680, 4807026, 4883328, 4898880, 4959630, 5143320, 5290272, 5307120, 5341140, 5486208, 5493744, 5697216, 5786235, 5878080, 5951556, 6065280, 6104160, 6171984, 6330240, 6368544, 6409368, 6612840, 6857760, 6867180, 6943482, 7053696, 7076160, 7121520, 7324992, 7439445, 7714980, 7935408, 7960680, 8011710, 8138880, 8229312, 8491392, 8545824, 8817120, 8927334, 9097920, 9143680, 9156240, 9257976, 9495360, 9614052, 9797760, 9919260, 10286640, 10415223, 10580544, 10614240, 10682280, 10987488, 11394432, 11572470, 11756160, 11903112, 12017565, 12208320, 12343968, 12737088, 12818736, 13225680, 13715520, 13734360, 13886964, 14152320, 14243040, 14649984, 14878890, 15429960, 15870816, 15921360, 16023420, 16458624, 17091648, 17358705, 17634240, 17854668, 18195840, 18312480, 18515952, 18990720, 19228104, 19838520, 20573280, 20830446, 21161088, 21228480, 21364560, 21974976, 22318335, 23144940, 23806224, 24035130, 24416640, 24687936, 25474176, 25637472, 26451360, 27431040, 27468720, 27773928, 28486080, 29757780, 30859920, 31245669, 31741632, 31842720, 32046840, 34183296, 34717410, 35268480, 35709336, 36624960, 37031904, 38456208, 39677040, 41146560, 41660892, 42456960, 42729120, 43949952, 44636670, 46289880, 47612448, 48070260, 49375872, 51274944, 52076115, 52902720, 54937440, 55547856, 56972160, 59515560, 61719840, 62491338, 63483264, 63685440, 64093680, 69434820, 71418672, 73249920, 74063808, 76912416, 79354080, 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約数ペア:

[(1, 19997228160), (2, 9998614080), (3, 6665742720), (4, 4999307040), (5, 3999445632), (6, 3332871360), (7, 2856746880), (8, 2499653520), (9, 2221914240), (10, 1999722816), (12, 1666435680), (13, 1538248320), (14, 1428373440), (15, 1333148544), (16, 1249826760), (18, 1110957120), (20, 999861408), (21, 952248960), (24, 833217840), (26, 769124160), (27, 740638080), (28, 714186720), (30, 666574272), (32, 624913380), (35, 571349376), (36, 555478560), (39, 512749440), (40, 499930704), (42, 476124480), (45, 444382848), (48, 416608920), (52, 384562080), (54, 370319040), (56, 357093360), (60, 333287136), (63, 317416320), (64, 312456690), (65, 307649664), (70, 285674688), (72, 277739280), (78, 256374720), (80, 249965352), (81, 246879360), (84, 238062240), (90, 222191424), (91, 219749760), (96, 208304460), (104, 192281040), (105, 190449792), (108, 185159520), (112, 178546680), (117, 170916480), (120, 166643568), (126, 158708160), (128, 156228345), (130, 153824832), (135, 148127616), (140, 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