256315752

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{467}}^1$

素因数の和:514

約数の個数: 240

約数和(自身を含む): 903782880

約数和(自身を除く): 647467128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 54, 56, 63, 66, 72, 77, 81, 84, 88, 99, 108, 121, 126, 132, 154, 162, 168, 189, 198, 216, 231, 242, 252, 264, 297, 308, 324, 363, 378, 396, 462, 467, 484, 504, 567, 594, 616, 648, 693, 726, 756, 792, 847, 891, 924, 934, 968, 1089, 1134, 1188, 1386, 1401, 1452, 1512, 1694, 1782, 1848, 1868, 2079, 2178, 2268, 2376, 2541, 2772, 2802, 2904, 3267, 3269, 3388, 3564, 3736, 4158, 4203, 4356, 4536, 5082, 5137, 5544, 5604, 6237, 6534, 6538, 6776, 7128, 7623, 8316, 8406, 8712, 9801, 9807, 10164, 10274, 11208, 12474, 12609, 13068, 13076, 15246, 15411, 16632, 16812, 19602, 19614, 20328, 20548, 22869, 24948, 25218, 26136, 26152, 29421, 30492, 30822, 33624, 35959, 37827, 39204, 39228, 41096, 45738, 46233, 49896, 50436, 56507, 58842, 60984, 61644, 68607, 71918, 75654, 78408, 78456, 88263, 91476, 92466, 100872, 107877, 113014, 117684, 123288, 137214, 138699, 143836, 151308, 169521, 176526, 182952, 184932, 215754, 226028, 235368, 264789, 274428, 277398, 287672, 302616, 323631, 339042, 353052, 369864, 395549, 416097, 431508, 452056, 508563, 529578, 548856, 554796, 647262, 678084, 706104, 791098, 832194, 863016, 970893, 1017126, 1059156, 1109592, 1186647, 1294524, 1356168, 1525689, 1582196, 1664388, 1941786, 2034252, 2118312, 2373294, 2589048, 2912679, 3051378, 3164392, 3328776, 3559941, 3883572, 4068504, 4577067, 4746588, 5825358, 6102756, 7119882, 7767144, 9154134, 9493176, 10679823, 11650716, 12205512, 14239764, 18308268, 21359646, 23301432, 28479528, 32039469, 36616536, 42719292, 64078938, 85438584, 128157876, 256315752]

約数ペア:

[(1, 256315752), (2, 128157876), (3, 85438584), (4, 64078938), (6, 42719292), (7, 36616536), (8, 32039469), (9, 28479528), (11, 23301432), (12, 21359646), (14, 18308268), (18, 14239764), (21, 12205512), (22, 11650716), (24, 10679823), (27, 9493176), (28, 9154134), (33, 7767144), (36, 7119882), (42, 6102756), (44, 5825358), (54, 4746588), (56, 4577067), (63, 4068504), (66, 3883572), (72, 3559941), (77, 3328776), (81, 3164392), (84, 3051378), (88, 2912679), (99, 2589048), (108, 2373294), (121, 2118312), (126, 2034252), (132, 1941786), (154, 1664388), (162, 1582196), (168, 1525689), (189, 1356168), (198, 1294524), (216, 1186647), (231, 1109592), (242, 1059156), (252, 1017126), (264, 970893), (297, 863016), (308, 832194), (324, 791098), (363, 706104), (378, 678084), (396, 647262), (462, 554796), (467, 548856), (484, 529578), (504, 508563), (567, 452056), (594, 431508), (616, 416097), (648, 395549), (693, 369864), (726, 353052), (756, 339042), (792, 323631), (847, 302616), (891, 287672), (924, 277398), (934, 274428), (968, 264789), (1089, 235368), (1134, 226028), (1188, 215754), (1386, 184932), (1401, 182952), (1452, 176526), (1512, 169521), (1694, 151308), (1782, 143836), (1848, 138699), (1868, 137214), (2079, 123288), (2178, 117684), (2268, 113014), (2376, 107877), (2541, 100872), (2772, 92466), (2802, 91476), (2904, 88263), (3267, 78456), (3269, 78408), (3388, 75654), (3564, 71918), (3736, 68607), (4158, 61644), (4203, 60984), (4356, 58842), (4536, 56507), (5082, 50436), (5137, 49896), (5544, 46233), (5604, 45738), (6237, 41096), (6534, 39228), (6538, 39204), (6776, 37827), (7128, 35959), (7623, 33624), (8316, 30822), (8406, 30492), (8712, 29421), (9801, 26152), (9807, 26136), (10164, 25218), (10274, 24948), (11208, 22869), (12474, 20548), (12609, 20328), (13068, 19614), (13076, 19602), (15246, 16812), (15411, 16632)]