257012392

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1093}}^1$

素因数の和:1155

約数の個数: 128

約数和(自身を含む): 661651200

約数和(自身を除く): 404638808

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 19, 26, 28, 34, 38, 52, 56, 68, 76, 91, 104, 119, 133, 136, 152, 182, 221, 238, 247, 266, 323, 364, 442, 476, 494, 532, 646, 728, 884, 952, 988, 1064, 1093, 1292, 1547, 1729, 1768, 1976, 2186, 2261, 2584, 3094, 3458, 4199, 4372, 4522, 6188, 6916, 7651, 8398, 8744, 9044, 12376, 13832, 14209, 15302, 16796, 18088, 18581, 20767, 28418, 29393, 30604, 33592, 37162, 41534, 56836, 58786, 61208, 74324, 83068, 99463, 113672, 117572, 130067, 145369, 148648, 166136, 198926, 235144, 241553, 260134, 269971, 290738, 353039, 397852, 483106, 520268, 539942, 581476, 706078, 795704, 966212, 1040536, 1079884, 1162952, 1412156, 1690871, 1889797, 1932424, 2159768, 2471273, 2824312, 3381742, 3779594, 4589507, 4942546, 6763484, 7559188, 9179014, 9885092, 13526968, 15118376, 18358028, 19770184, 32126549, 36716056, 64253098, 128506196, 257012392]

約数ペア:

[(1, 257012392), (2, 128506196), (4, 64253098), (7, 36716056), (8, 32126549), (13, 19770184), (14, 18358028), (17, 15118376), (19, 13526968), (26, 9885092), (28, 9179014), (34, 7559188), (38, 6763484), (52, 4942546), (56, 4589507), (68, 3779594), (76, 3381742), (91, 2824312), (104, 2471273), (119, 2159768), (133, 1932424), (136, 1889797), (152, 1690871), (182, 1412156), (221, 1162952), (238, 1079884), (247, 1040536), (266, 966212), (323, 795704), (364, 706078), (442, 581476), (476, 539942), (494, 520268), (532, 483106), (646, 397852), (728, 353039), (884, 290738), (952, 269971), (988, 260134), (1064, 241553), (1093, 235144), (1292, 198926), (1547, 166136), (1729, 148648), (1768, 145369), (1976, 130067), (2186, 117572), (2261, 113672), (2584, 99463), (3094, 83068), (3458, 74324), (4199, 61208), (4372, 58786), (4522, 56836), (6188, 41534), (6916, 37162), (7651, 33592), (8398, 30604), (8744, 29393), (9044, 28418), (12376, 20767), (13832, 18581), (14209, 18088), (15302, 16796)]