261480128

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 224

約数和(自身を含む): 716889600

約数和(自身を除く): 455409472

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 19, 26, 28, 32, 34, 38, 52, 56, 64, 68, 76, 91, 104, 112, 119, 133, 136, 139, 152, 182, 208, 221, 224, 238, 247, 266, 272, 278, 304, 323, 364, 416, 442, 448, 476, 494, 532, 544, 556, 608, 646, 728, 832, 884, 952, 973, 988, 1064, 1088, 1112, 1216, 1292, 1456, 1547, 1729, 1768, 1807, 1904, 1946, 1976, 2128, 2224, 2261, 2363, 2584, 2641, 2912, 3094, 3458, 3536, 3614, 3808, 3892, 3952, 4199, 4256, 4448, 4522, 4726, 5168, 5282, 5824, 6188, 6916, 7072, 7228, 7616, 7784, 7904, 8398, 8512, 8896, 9044, 9452, 10336, 10564, 12376, 12649, 13832, 14144, 14456, 15568, 15808, 16541, 16796, 18088, 18487, 18904, 20672, 21128, 24752, 25298, 27664, 28912, 29393, 30719, 31136, 33082, 33592, 34333, 36176, 36974, 37808, 42256, 44897, 49504, 50596, 55328, 57824, 58786, 61438, 62272, 66164, 67184, 68666, 72352, 73948, 75616, 84512, 89794, 99008, 101192, 110656, 115648, 117572, 122876, 132328, 134368, 137332, 144704, 147896, 151232, 169024, 179588, 202384, 215033, 235144, 240331, 245752, 264656, 268736, 274664, 295792, 314279, 359176, 404768, 430066, 470288, 480662, 491504, 529312, 549328, 583661, 591584, 628558, 718352, 809536, 860132, 940576, 961324, 983008, 1058624, 1098656, 1167322, 1183168, 1257116, 1436704, 1720264, 1881152, 1922648, 1966016, 2197312, 2334644, 2514232, 2873408, 3440528, 3845296, 4085627, 4669288, 5028464, 6881056, 7690592, 8171254, 9338576, 10056928, 13762112, 15381184, 16342508, 18677152, 20113856, 32685016, 37354304, 65370032, 130740064, 261480128]

約数ペア:

[(1, 261480128), (2, 130740064), (4, 65370032), (7, 37354304), (8, 32685016), (13, 20113856), (14, 18677152), (16, 16342508), (17, 15381184), (19, 13762112), (26, 10056928), (28, 9338576), (32, 8171254), (34, 7690592), (38, 6881056), (52, 5028464), (56, 4669288), (64, 4085627), (68, 3845296), (76, 3440528), (91, 2873408), (104, 2514232), (112, 2334644), (119, 2197312), (133, 1966016), (136, 1922648), (139, 1881152), (152, 1720264), (182, 1436704), (208, 1257116), (221, 1183168), (224, 1167322), (238, 1098656), (247, 1058624), (266, 983008), (272, 961324), (278, 940576), (304, 860132), (323, 809536), (364, 718352), (416, 628558), (442, 591584), (448, 583661), (476, 549328), (494, 529312), (532, 491504), (544, 480662), (556, 470288), (608, 430066), (646, 404768), (728, 359176), (832, 314279), (884, 295792), (952, 274664), (973, 268736), (988, 264656), (1064, 245752), (1088, 240331), (1112, 235144), (1216, 215033), (1292, 202384), (1456, 179588), (1547, 169024), (1729, 151232), (1768, 147896), (1807, 144704), (1904, 137332), (1946, 134368), (1976, 132328), (2128, 122876), (2224, 117572), (2261, 115648), (2363, 110656), (2584, 101192), (2641, 99008), (2912, 89794), (3094, 84512), (3458, 75616), (3536, 73948), (3614, 72352), (3808, 68666), (3892, 67184), (3952, 66164), (4199, 62272), (4256, 61438), (4448, 58786), (4522, 57824), (4726, 55328), (5168, 50596), (5282, 49504), (5824, 44897), (6188, 42256), (6916, 37808), (7072, 36974), (7228, 36176), (7616, 34333), (7784, 33592), (7904, 33082), (8398, 31136), (8512, 30719), (8896, 29393), (9044, 28912), (9452, 27664), (10336, 25298), (10564, 24752), (12376, 21128), (12649, 20672), (13832, 18904), (14144, 18487), (14456, 18088), (15568, 16796), (15808, 16541)]