20778864888096

素因数分解:

$2^5\times 3^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{379}}^1\times {\mathrm{4481}}^1$

素因数の和:4927

約数の個数: 864

約数和(自身を含む): 75105064036800

約数和(自身を除く): 54326199148704

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 49, 51, 54, 56, 63, 68, 72, 84, 96, 98, 102, 108, 112, 119, 126, 136, 144, 147, 153, 168, 189, 196, 204, 216, 224, 238, 252, 272, 288, 289, 294, 306, 336, 357, 378, 379, 392, 408, 432, 441, 459, 476, 504, 544, 578, 588, 612, 672, 714, 756, 758, 784, 816, 833, 864, 867, 882, 918, 952, 1008, 1071, 1137, 1156, 1176, 1224, 1323, 1428, 1512, 1516, 1568, 1632, 1666, 1734, 1764, 1836, 1904, 2016, 2023, 2142, 2274, 2312, 2352, 2448, 2499, 2601, 2646, 2653, 2856, 3024, 3032, 3213, 3332, 3411, 3468, 3528, 3672, 3808, 4046, 4284, 4481, 4548, 4624, 4704, 4896, 4998, 5202, 5292, 5306, 5712, 6048, 6064, 6069, 6426, 6443, 6664, 6822, 6936, 7056, 7344, 7497, 7803, 7959, 8092, 8568, 8962, 9096, 9248, 9996, 10233, 10404, 10584, 10612, 11424, 12128, 12138, 12852, 12886, 13328, 13443, 13644, 13872, 14112, 14161, 14688, 14994, 15606, 15918, 16184, 17136, 17924, 18192, 18207, 18571, 19329, 19992, 20466, 20808, 21168, 21224, 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約数ペア:

[(1, 20778864888096), (2, 10389432444048), (3, 6926288296032), (4, 5194716222024), (6, 3463144148016), (7, 2968409269728), (8, 2597358111012), (9, 2308762765344), (12, 1731572074008), (14, 1484204634864), (16, 1298679055506), (17, 1222286169888), (18, 1154381382672), (21, 989469756576), (24, 865786037004), (27, 769587588448), (28, 742102317432), (32, 649339527753), (34, 611143084944), (36, 577190691336), (42, 494734878288), (48, 432893018502), (49, 424058467104), (51, 407428723296), (54, 384793794224), (56, 371051158716), (63, 329823252192), (68, 305571542472), (72, 288595345668), (84, 247367439144), (96, 216446509251), (98, 212029233552), (102, 203714361648), (108, 192396897112), (112, 185525579358), (119, 174612309984), (126, 164911626096), (136, 152785771236), (144, 144297672834), (147, 141352822368), (153, 135809574432), (168, 123683719572), (189, 109941084064), (196, 106014616776), (204, 101857180824), (216, 96198448556), (224, 92762789679), (238, 87306154992), (252, 82455813048), 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