256535488

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 84

約数和(自身を含む): 565780936

約数和(自身を除く): 309245448

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 157, 176, 211, 242, 314, 352, 422, 484, 628, 704, 844, 968, 1256, 1688, 1727, 1936, 2321, 2512, 3376, 3454, 3872, 4642, 5024, 6752, 6908, 7744, 9284, 10048, 13504, 13816, 18568, 18997, 25531, 27632, 33127, 37136, 37994, 51062, 55264, 66254, 74272, 75988, 102124, 110528, 132508, 148544, 151976, 204248, 265016, 303952, 364397, 408496, 530032, 607904, 728794, 816992, 1060064, 1215808, 1457588, 1633984, 2120128, 2915176, 4008367, 5830352, 8016734, 11660704, 16033468, 23321408, 32066936, 64133872, 128267744, 256535488]

約数ペア:

[(1, 256535488), (2, 128267744), (4, 64133872), (8, 32066936), (11, 23321408), (16, 16033468), (22, 11660704), (32, 8016734), (44, 5830352), (64, 4008367), (88, 2915176), (121, 2120128), (157, 1633984), (176, 1457588), (211, 1215808), (242, 1060064), (314, 816992), (352, 728794), (422, 607904), (484, 530032), (628, 408496), (704, 364397), (844, 303952), (968, 265016), (1256, 204248), (1688, 151976), (1727, 148544), (1936, 132508), (2321, 110528), (2512, 102124), (3376, 75988), (3454, 74272), (3872, 66254), (4642, 55264), (5024, 51062), (6752, 37994), (6908, 37136), (7744, 33127), (9284, 27632), (10048, 25531), (13504, 18997), (13816, 18568)]