257451264

素因数分解:

$2^8\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:362

約数の個数: 288

約数和(自身を含む): 924215040

約数和(自身を除く): 666763776

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 51, 54, 56, 63, 64, 68, 72, 84, 96, 102, 108, 112, 119, 126, 128, 136, 144, 153, 168, 189, 192, 204, 216, 224, 238, 252, 256, 272, 288, 306, 313, 336, 357, 378, 384, 408, 432, 448, 459, 476, 504, 544, 576, 612, 626, 672, 714, 756, 768, 816, 864, 896, 918, 939, 952, 1008, 1071, 1088, 1152, 1224, 1252, 1344, 1428, 1512, 1632, 1728, 1792, 1836, 1878, 1904, 2016, 2142, 2176, 2191, 2304, 2448, 2504, 2688, 2817, 2856, 3024, 3213, 3264, 3456, 3672, 3756, 3808, 4032, 4284, 4352, 4382, 4896, 5008, 5321, 5376, 5634, 5712, 6048, 6426, 6528, 6573, 6912, 7344, 7512, 7616, 8064, 8451, 8568, 8764, 9792, 10016, 10642, 11268, 11424, 12096, 12852, 13056, 13146, 14688, 15024, 15232, 15963, 16128, 16902, 17136, 17528, 19584, 19719, 20032, 21284, 22536, 22848, 24192, 25704, 26292, 29376, 30048, 30464, 31926, 33804, 34272, 35056, 37247, 39168, 39438, 40064, 42568, 45072, 45696, 47889, 48384, 51408, 52584, 58752, 59157, 60096, 63852, 67608, 68544, 70112, 74494, 78876, 80128, 85136, 90144, 91392, 95778, 102816, 105168, 111741, 117504, 118314, 120192, 127704, 135216, 137088, 140224, 143667, 148988, 157752, 170272, 180288, 191556, 205632, 210336, 223482, 236628, 240384, 255408, 270432, 274176, 280448, 287334, 297976, 315504, 335223, 340544, 360576, 383112, 411264, 420672, 446964, 473256, 510816, 540864, 560896, 574668, 595952, 631008, 670446, 681088, 721152, 766224, 822528, 841344, 893928, 946512, 1005669, 1021632, 1081728, 1149336, 1191904, 1262016, 1340892, 1362176, 1532448, 1682688, 1787856, 1893024, 2011338, 2043264, 2163456, 2298672, 2383808, 2524032, 2681784, 3064896, 3575712, 3786048, 4022676, 4086528, 4597344, 4767616, 5048064, 5363568, 6129792, 7151424, 7572096, 8045352, 9194688, 9535232, 10727136, 12259584, 14302848, 15144192, 16090704, 18389376, 21454272, 28605696, 32181408, 36778752, 42908544, 64362816, 85817088, 128725632, 257451264]

約数ペア:

[(1, 257451264), (2, 128725632), (3, 85817088), (4, 64362816), (6, 42908544), (7, 36778752), (8, 32181408), (9, 28605696), (12, 21454272), (14, 18389376), (16, 16090704), (17, 15144192), (18, 14302848), (21, 12259584), (24, 10727136), (27, 9535232), (28, 9194688), (32, 8045352), (34, 7572096), (36, 7151424), (42, 6129792), (48, 5363568), (51, 5048064), (54, 4767616), (56, 4597344), (63, 4086528), (64, 4022676), (68, 3786048), (72, 3575712), (84, 3064896), (96, 2681784), (102, 2524032), (108, 2383808), (112, 2298672), (119, 2163456), (126, 2043264), (128, 2011338), (136, 1893024), (144, 1787856), (153, 1682688), (168, 1532448), (189, 1362176), (192, 1340892), (204, 1262016), (216, 1191904), (224, 1149336), (238, 1081728), (252, 1021632), (256, 1005669), (272, 946512), (288, 893928), (306, 841344), (313, 822528), (336, 766224), (357, 721152), (378, 681088), (384, 670446), (408, 631008), (432, 595952), (448, 574668), (459, 560896), (476, 540864), (504, 510816), (544, 473256), (576, 446964), (612, 420672), (626, 411264), (672, 383112), (714, 360576), (756, 340544), (768, 335223), (816, 315504), (864, 297976), (896, 287334), (918, 280448), (939, 274176), (952, 270432), (1008, 255408), (1071, 240384), (1088, 236628), (1152, 223482), (1224, 210336), (1252, 205632), (1344, 191556), (1428, 180288), (1512, 170272), (1632, 157752), (1728, 148988), (1792, 143667), (1836, 140224), (1878, 137088), (1904, 135216), (2016, 127704), (2142, 120192), (2176, 118314), (2191, 117504), (2304, 111741), (2448, 105168), (2504, 102816), (2688, 95778), (2817, 91392), (2856, 90144), (3024, 85136), (3213, 80128), (3264, 78876), (3456, 74494), (3672, 70112), (3756, 68544), (3808, 67608), (4032, 63852), (4284, 60096), (4352, 59157), (4382, 58752), (4896, 52584), (5008, 51408), (5321, 48384), (5376, 47889), (5634, 45696), (5712, 45072), (6048, 42568), (6426, 40064), (6528, 39438), (6573, 39168), (6912, 37247), (7344, 35056), (7512, 34272), (7616, 33804), (8064, 31926), (8451, 30464), (8568, 30048), (8764, 29376), (9792, 26292), (10016, 25704), (10642, 24192), (11268, 22848), (11424, 22536), (12096, 21284), (12852, 20032), (13056, 19719), (13146, 19584), (14688, 17528), (15024, 17136), (15232, 16902), (15963, 16128)]