20921630235968

素因数分解:

$2^6\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{449}}^1$

素因数の和:820

約数の個数: 1008

約数和(自身を含む): 58645281744000

約数和(自身を除く): 37723651508032

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 23, 28, 32, 38, 44, 46, 49, 56, 64, 76, 77, 88, 92, 98, 112, 121, 133, 152, 154, 161, 176, 184, 196, 209, 224, 242, 253, 266, 281, 304, 308, 322, 352, 368, 392, 418, 437, 448, 449, 484, 506, 532, 539, 562, 608, 616, 644, 704, 736, 784, 836, 847, 874, 898, 931, 968, 1012, 1064, 1078, 1124, 1127, 1216, 1232, 1288, 1463, 1472, 1568, 1672, 1694, 1748, 1771, 1796, 1862, 1936, 1967, 2024, 2128, 2156, 2248, 2254, 2299, 2464, 2576, 2783, 2926, 3059, 3091, 3136, 3143, 3344, 3388, 3496, 3542, 3592, 3724, 3872, 3934, 4048, 4256, 4312, 4496, 4508, 4598, 4807, 4928, 4939, 5152, 5339, 5566, 5852, 5929, 6118, 6182, 6286, 6463, 6688, 6776, 6992, 7084, 7184, 7448, 7744, 7868, 8096, 8512, 8531, 8624, 8992, 9016, 9196, 9614, 9878, 10241, 10304, 10327, 10678, 11132, 11704, 11858, 12236, 12364, 12397, 12572, 12926, 13376, 13552, 13769, 13984, 14168, 14368, 14896, 15736, 16093, 16192, 17062, 17248, 17984, 18032, 18392, 19228, 19481, 19756, 20482, 20654, 21356, 21413, 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約数ペア:

[(1, 20921630235968), (2, 10460815117984), (4, 5230407558992), (7, 2988804319424), (8, 2615203779496), (11, 1901966385088), (14, 1494402159712), (16, 1307601889748), (19, 1101138433472), (22, 950983192544), (23, 909636097216), (28, 747201079856), (32, 653800944874), (38, 550569216736), (44, 475491596272), (46, 454818048608), (49, 426972045632), (56, 373600539928), (64, 326900472437), (76, 275284608368), (77, 271709483584), (88, 237745798136), (92, 227409024304), (98, 213486022816), (112, 186800269964), (121, 172906035008), (133, 157305490496), (152, 137642304184), (154, 135854741792), (161, 129948013888), (176, 118872899068), (184, 113704512152), (196, 106743011408), (209, 100103493952), (224, 93400134982), (242, 86453017504), (253, 82694190656), (266, 78652745248), (281, 74454200128), (304, 68821152092), (308, 67927370896), (322, 64974006944), (352, 59436449534), (368, 56852256076), (392, 53371505704), (418, 50051746976), (437, 47875584064), (448, 46700067491), (449, 46596058432), 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