256628288

素因数分解:

$2^6\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 168

約数和(自身を含む): 642823200

約数和(自身を除く): 386194912

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 59, 64, 73, 76, 98, 112, 118, 133, 146, 152, 196, 224, 236, 266, 292, 304, 392, 413, 448, 472, 511, 532, 584, 608, 784, 826, 931, 944, 1022, 1064, 1121, 1168, 1216, 1387, 1568, 1652, 1862, 1888, 2044, 2128, 2242, 2336, 2774, 2891, 3136, 3304, 3577, 3724, 3776, 4088, 4256, 4307, 4484, 4672, 5548, 5782, 6608, 7154, 7448, 7847, 8176, 8512, 8614, 8968, 9709, 11096, 11564, 13216, 14308, 14896, 15694, 16352, 17228, 17936, 19418, 22192, 23128, 26432, 28616, 29792, 30149, 31388, 32704, 34456, 35872, 38836, 44384, 46256, 54929, 57232, 59584, 60298, 62776, 67963, 68912, 71744, 77672, 81833, 88768, 92512, 109858, 114464, 120596, 125552, 135926, 137824, 155344, 163666, 185024, 211043, 219716, 228928, 241192, 251104, 271852, 275648, 310688, 327332, 422086, 439432, 482384, 502208, 543704, 572831, 621376, 654664, 844172, 878864, 964768, 1087408, 1145662, 1309328, 1688344, 1757728, 1929536, 2174816, 2291324, 2618656, 3376688, 3515456, 4009817, 4349632, 4582648, 5237312, 6753376, 8019634, 9165296, 13506752, 16039268, 18330592, 32078536, 36661184, 64157072, 128314144, 256628288]

約数ペア:

[(1, 256628288), (2, 128314144), (4, 64157072), (7, 36661184), (8, 32078536), (14, 18330592), (16, 16039268), (19, 13506752), (28, 9165296), (32, 8019634), (38, 6753376), (49, 5237312), (56, 4582648), (59, 4349632), (64, 4009817), (73, 3515456), (76, 3376688), (98, 2618656), (112, 2291324), (118, 2174816), (133, 1929536), (146, 1757728), (152, 1688344), (196, 1309328), (224, 1145662), (236, 1087408), (266, 964768), (292, 878864), (304, 844172), (392, 654664), (413, 621376), (448, 572831), (472, 543704), (511, 502208), (532, 482384), (584, 439432), (608, 422086), (784, 327332), (826, 310688), (931, 275648), (944, 271852), (1022, 251104), (1064, 241192), (1121, 228928), (1168, 219716), (1216, 211043), (1387, 185024), (1568, 163666), (1652, 155344), (1862, 137824), (1888, 135926), (2044, 125552), (2128, 120596), (2242, 114464), (2336, 109858), (2774, 92512), (2891, 88768), (3136, 81833), (3304, 77672), (3577, 71744), (3724, 68912), (3776, 67963), (4088, 62776), (4256, 60298), (4307, 59584), (4484, 57232), (4672, 54929), (5548, 46256), (5782, 44384), (6608, 38836), (7154, 35872), (7448, 34456), (7847, 32704), (8176, 31388), (8512, 30149), (8614, 29792), (8968, 28616), (9709, 26432), (11096, 23128), (11564, 22192), (13216, 19418), (14308, 17936), (14896, 17228), (15694, 16352)]