278480384

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 160

約数和(自身を含む): 705788160

約数和(自身を除く): 427307776

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 43, 52, 56, 64, 86, 91, 104, 112, 128, 139, 172, 182, 208, 224, 256, 278, 301, 344, 364, 416, 448, 512, 556, 559, 602, 688, 728, 832, 896, 973, 1112, 1118, 1204, 1376, 1456, 1664, 1792, 1807, 1946, 2224, 2236, 2408, 2752, 2912, 3328, 3584, 3614, 3892, 3913, 4448, 4472, 4816, 5504, 5824, 5977, 6656, 7228, 7784, 7826, 8896, 8944, 9632, 11008, 11648, 11954, 12649, 14456, 15568, 15652, 17792, 17888, 19264, 22016, 23296, 23908, 25298, 28912, 31136, 31304, 35584, 35776, 38528, 41839, 46592, 47816, 50596, 57824, 62272, 62608, 71168, 71552, 77056, 77701, 83678, 95632, 101192, 115648, 124544, 125216, 143104, 154112, 155402, 167356, 191264, 202384, 231296, 249088, 250432, 286208, 310804, 334712, 382528, 404768, 462592, 498176, 500864, 543907, 621608, 669424, 765056, 809536, 925184, 1001728, 1087814, 1243216, 1338848, 1530112, 1619072, 2003456, 2175628, 2486432, 2677696, 3060224, 3238144, 4351256, 4972864, 5355392, 6476288, 8702512, 9945728, 10710784, 17405024, 19891456, 21421568, 34810048, 39782912, 69620096, 139240192, 278480384]

約数ペア:

[(1, 278480384), (2, 139240192), (4, 69620096), (7, 39782912), (8, 34810048), (13, 21421568), (14, 19891456), (16, 17405024), (26, 10710784), (28, 9945728), (32, 8702512), (43, 6476288), (52, 5355392), (56, 4972864), (64, 4351256), (86, 3238144), (91, 3060224), (104, 2677696), (112, 2486432), (128, 2175628), (139, 2003456), (172, 1619072), (182, 1530112), (208, 1338848), (224, 1243216), (256, 1087814), (278, 1001728), (301, 925184), (344, 809536), (364, 765056), (416, 669424), (448, 621608), (512, 543907), (556, 500864), (559, 498176), (602, 462592), (688, 404768), (728, 382528), (832, 334712), (896, 310804), (973, 286208), (1112, 250432), (1118, 249088), (1204, 231296), (1376, 202384), (1456, 191264), (1664, 167356), (1792, 155402), (1807, 154112), (1946, 143104), (2224, 125216), (2236, 124544), (2408, 115648), (2752, 101192), (2912, 95632), (3328, 83678), (3584, 77701), (3614, 77056), (3892, 71552), (3913, 71168), (4448, 62608), (4472, 62272), (4816, 57824), (5504, 50596), (5824, 47816), (5977, 46592), (6656, 41839), (7228, 38528), (7784, 35776), (7826, 35584), (8896, 31304), (8944, 31136), (9632, 28912), (11008, 25298), (11648, 23908), (11954, 23296), (12649, 22016), (14456, 19264), (15568, 17888), (15652, 17792)]