20781324144

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 720

約数和(自身を含む): 76379635200

約数和(自身を除く): 55598311056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 43, 48, 49, 51, 54, 56, 63, 68, 72, 79, 84, 86, 98, 102, 108, 112, 119, 126, 129, 136, 144, 147, 153, 158, 168, 172, 189, 196, 204, 216, 237, 238, 252, 258, 272, 289, 294, 301, 306, 316, 336, 344, 357, 378, 387, 392, 408, 432, 441, 459, 474, 476, 504, 516, 553, 578, 588, 602, 612, 632, 688, 711, 714, 731, 756, 774, 784, 816, 833, 867, 882, 903, 918, 948, 952, 1008, 1032, 1071, 1106, 1156, 1161, 1176, 1204, 1224, 1264, 1323, 1343, 1422, 1428, 1462, 1512, 1548, 1659, 1666, 1734, 1764, 1806, 1836, 1896, 1904, 2023, 2064, 2107, 2133, 2142, 2193, 2212, 2312, 2322, 2352, 2408, 2448, 2499, 2601, 2646, 2686, 2709, 2844, 2856, 2924, 3024, 3096, 3213, 3318, 3332, 3397, 3468, 3528, 3612, 3672, 3792, 3871, 4029, 4046, 4214, 4266, 4284, 4386, 4424, 4624, 4644, 4816, 4977, 4998, 5117, 5202, 5292, 5372, 5418, 5688, 5712, 5848, 6069, 6192, 6321, 6426, 6579, 6636, 6664, 6794, 6936, 7056, 7224, 7344, 7497, 7742, 7803, 8058, 8092, 8127, 8428, 8532, 8568, 8772, 8848, 9288, 9401, 9954, 9996, 10191, 10234, 10404, 10584, 10744, 10836, 11376, 11613, 11696, 12087, 12138, 12427, 12642, 12852, 13158, 13272, 13328, 13588, 13872, 14161, 14448, 14931, 14994, 15351, 15484, 15606, 16116, 16184, 16254, 16856, 17064, 17136, 17544, 18207, 18576, 18802, 18963, 19737, 19908, 19992, 20382, 20468, 20808, 21168, 21488, 21672, 22491, 22831, 23226, 23779, 24174, 24276, 24854, 25284, 25704, 26316, 26544, 27176, 28203, 28322, 29862, 29988, 30573, 30702, 30968, 31212, 32232, 32368, 32508, 33712, 34128, 34839, 35088, 35819, 36261, 36414, 37281, 37604, 37926, 39474, 39816, 39984, 40764, 40936, 41616, 42483, 43344, 44982, 45662, 46053, 46452, 47558, 48348, 48552, 49708, 50568, 51408, 52632, 54352, 54621, 56406, 56644, 56889, 57749, 59724, 59976, 61146, 61404, 61936, 62424, 64464, 65016, 65807, 68493, 69678, 71337, 71638, 72522, 72828, 74562, 75208, 75852, 78948, 79632, 81528, 81872, 84609, 84966, 86989, 89964, 91324, 91719, 92106, 92904, 95116, 96696, 97104, 99416, 101136, 104517, 105264, 107457, 109242, 111843, 112812, 113288, 113778, 115498, 119448, 119952, 122292, 122808, 124848, 127449, 130032, 131614, 136986, 138159, 139356, 142674, 143276, 145044, 145656, 149124, 150416, 151704, 157896, 159817, 163056, 166453, 169218, 169932, 173247, 173978, 179928, 182648, 183438, 184212, 185808, 190232, 193392, 197421, 198832, 205479, 209034, 214011, 214914, 218484, 223686, 225624, 226576, 227556, 230996, 238896, 244584, 245616, 253827, 254898, 260967, 263228, 273972, 276318, 278712, 285348, 286552, 290088, 291312, 298248, 303408, 315792, 319634, 322371, 332906, 335529, 338436, 339864, 346494, 347956, 359856, 365296, 366876, 368424, 380464, 382347, 394842, 404243, 410958, 418068, 428022, 429828, 436968, 447372, 451248, 455112, 461992, 479451, 489168, 499359, 507654, 509796, 519741, 521934, 526456, 547944, 552636, 557424, 570696, 573104, 580176, 592263, 596496, 608923, 616437, 639268, 642033, 644742, 665812, 671058, 676872, 679728, 692988, 695912, 733752, 736848, 764694, 782901, 789684, 808486, 821916, 836136, 856044, 859656, 873936, 894744, 910224, 923984, 958902, 967113, 981733, 998718, 1015308, 1019592, 1039482, 1043868, 1052912, 1095888, 1105272, 1118719, 1141392, 1184526, 1212729, 1217846, 1232874, 1278536, 1284066, 1289484, 1331624, 1342116, 1353744, 1385976, 1391824, 1438353, 1467504, 1498077, 1529388, 1559223, 1565802, 1579368, 1616972, 1643832, 1672272, 1712088, 1719312, 1776789, 1789488, 1826769, 1917804, 1934226, 1963466, 1997436, 2030616, 2039184, 2078964, 2087736, 2210544, 2237438, 2348703, 2369052, 2425458, 2435692, 2465748, 2557072, 2568132, 2578968, 2663248, 2684232, 2771952, 2829701, 2876706, 2945199, 2996154, 3058776, 3118446, 3131604, 3158736, 3233944, 3287664, 3356157, 3424176, 3553578, 3638187, 3653538, 3835608, 3868452, 3926932, 3994872, 4061232, 4157928, 4175472, 4315059, 4474876, 4494231, 4697406, 4738104, 4850916, 4871384, 4931496, 5136264, 5157936, 5368464, 5480307, 5659402, 5753412, 5890398, 5992308, 6117552, 6236892, 6263208, 6467888, 6712314, 6872131, 7107156, 7276374, 7307076, 7671216, 7736904, 7853864, 7989744, 8315856, 8489103, 8630118, 8835597, 8949752, 8988462, 9394812, 9476208, 9701832, 9742768, 9862992, 10068471, 10272528, 10914561, 10960614, 11318804, 11506824, 11780796, 11984616, 12473784, 12526416, 13424628, 13744262, 14214312, 14552748, 14614152, 15473808, 15707728, 16440921, 16978206, 17260236, 17671194, 17899504, 17976924, 18789624, 19403664, 20136942, 20616393, 21829122, 21921228, 22637608, 23013648, 23561592, 23969232, 24947568, 25467309, 26506791, 26849256, 27488524, 28428624, 29105496, 29228304, 30205413, 32881842, 33956412, 34520472, 35342388, 35953848, 37579248, 40273884, 41232786, 43658244, 43842456, 45275216, 47123184, 48104917, 50934618, 53013582, 53698512, 54977048, 58210992, 60410826, 61849179, 65763684, 67912824, 69040944, 70684776, 71907696, 76401927, 80547768, 82465572, 87316488, 87684912, 96209834, 101869236, 106027164, 109954096, 120821652, 123698358, 131527368, 135825648, 141369552, 144314751, 152803854, 161095536, 164931144, 174632976, 185547537, 192419668, 203738472, 212054328, 241643304, 247396716, 263054736, 288629502, 305607708, 329862288, 371095074, 384839336, 407476944, 424108656, 432944253, 483286608, 494793432, 577259004, 611215416, 742190148, 769678672, 865888506, 989586864, 1154518008, 1222430832, 1298832759, 1484380296, 1731777012, 2309036016, 2597665518, 2968760592, 3463554024, 5195331036, 6927108048, 10390662072, 20781324144]

約数ペア:

[(1, 20781324144), (2, 10390662072), (3, 6927108048), (4, 5195331036), (6, 3463554024), (7, 2968760592), (8, 2597665518), (9, 2309036016), (12, 1731777012), (14, 1484380296), (16, 1298832759), (17, 1222430832), (18, 1154518008), (21, 989586864), (24, 865888506), (27, 769678672), (28, 742190148), (34, 611215416), (36, 577259004), (42, 494793432), (43, 483286608), (48, 432944253), (49, 424108656), (51, 407476944), (54, 384839336), (56, 371095074), (63, 329862288), (68, 305607708), (72, 288629502), (79, 263054736), (84, 247396716), (86, 241643304), (98, 212054328), (102, 203738472), (108, 192419668), (112, 185547537), (119, 174632976), (126, 164931144), (129, 161095536), (136, 152803854), (144, 144314751), (147, 141369552), (153, 135825648), (158, 131527368), (168, 123698358), (172, 120821652), (189, 109954096), (196, 106027164), (204, 101869236), (216, 96209834), (237, 87684912), (238, 87316488), (252, 82465572), (258, 80547768), (272, 76401927), (289, 71907696), (294, 70684776), (301, 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(1764, 11780796), (1806, 11506824), (1836, 11318804), (1896, 10960614), (1904, 10914561), (2023, 10272528), (2064, 10068471), (2107, 9862992), (2133, 9742768), (2142, 9701832), (2193, 9476208), (2212, 9394812), (2312, 8988462), (2322, 8949752), (2352, 8835597), (2408, 8630118), (2448, 8489103), (2499, 8315856), (2601, 7989744), (2646, 7853864), (2686, 7736904), (2709, 7671216), (2844, 7307076), (2856, 7276374), (2924, 7107156), (3024, 6872131), (3096, 6712314), (3213, 6467888), (3318, 6263208), (3332, 6236892), (3397, 6117552), (3468, 5992308), (3528, 5890398), (3612, 5753412), (3672, 5659402), (3792, 5480307), (3871, 5368464), (4029, 5157936), (4046, 5136264), (4214, 4931496), (4266, 4871384), (4284, 4850916), (4386, 4738104), (4424, 4697406), (4624, 4494231), (4644, 4474876), (4816, 4315059), (4977, 4175472), (4998, 4157928), (5117, 4061232), (5202, 3994872), (5292, 3926932), (5372, 3868452), (5418, 3835608), (5688, 3653538), (5712, 3638187), (5848, 3553578), (6069, 3424176), (6192, 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