257641216

素因数分解:

$2^8\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 216

約数和(自身を含む): 671086080

約数和(自身を除く): 413444864

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 32, 38, 46, 47, 49, 56, 64, 76, 92, 94, 98, 112, 128, 133, 152, 161, 184, 188, 196, 224, 256, 266, 304, 322, 329, 368, 376, 392, 437, 448, 532, 608, 644, 658, 736, 752, 784, 874, 893, 896, 931, 1064, 1081, 1127, 1216, 1288, 1316, 1472, 1504, 1568, 1748, 1786, 1792, 1862, 2128, 2162, 2254, 2303, 2432, 2576, 2632, 2944, 3008, 3059, 3136, 3496, 3572, 3724, 4256, 4324, 4508, 4606, 4864, 5152, 5264, 5888, 6016, 6118, 6251, 6272, 6992, 7144, 7448, 7567, 8512, 8648, 9016, 9212, 10304, 10528, 12032, 12236, 12502, 12544, 13984, 14288, 14896, 15134, 17024, 17296, 18032, 18424, 20539, 20608, 21056, 21413, 24472, 25004, 27968, 28576, 29792, 30268, 34048, 34592, 36064, 36848, 41078, 41216, 42112, 42826, 43757, 48944, 50008, 52969, 55936, 57152, 59584, 60536, 69184, 72128, 73696, 82156, 84224, 85652, 87514, 97888, 100016, 105938, 111872, 114304, 119168, 121072, 138368, 143773, 144256, 147392, 164312, 171304, 175028, 195776, 200032, 211876, 228608, 238336, 242144, 276736, 287546, 288512, 294784, 328624, 342608, 350056, 391552, 400064, 423752, 484288, 575092, 589568, 657248, 685216, 700112, 783104, 800128, 847504, 968576, 1006411, 1150184, 1314496, 1370432, 1400224, 1600256, 1695008, 1937152, 2012822, 2300368, 2628992, 2740864, 2800448, 3390016, 4025644, 4600736, 5257984, 5481728, 5600896, 6780032, 8051288, 9201472, 11201792, 13560064, 16102576, 18402944, 32205152, 36805888, 64410304, 128820608, 257641216]

約数ペア:

[(1, 257641216), (2, 128820608), (4, 64410304), (7, 36805888), (8, 32205152), (14, 18402944), (16, 16102576), (19, 13560064), (23, 11201792), (28, 9201472), (32, 8051288), (38, 6780032), (46, 5600896), (47, 5481728), (49, 5257984), (56, 4600736), (64, 4025644), (76, 3390016), (92, 2800448), (94, 2740864), (98, 2628992), (112, 2300368), (128, 2012822), (133, 1937152), (152, 1695008), (161, 1600256), (184, 1400224), (188, 1370432), (196, 1314496), (224, 1150184), (256, 1006411), (266, 968576), (304, 847504), (322, 800128), (329, 783104), (368, 700112), (376, 685216), (392, 657248), (437, 589568), (448, 575092), (532, 484288), (608, 423752), (644, 400064), (658, 391552), (736, 350056), (752, 342608), (784, 328624), (874, 294784), (893, 288512), (896, 287546), (931, 276736), (1064, 242144), (1081, 238336), (1127, 228608), (1216, 211876), (1288, 200032), (1316, 195776), (1472, 175028), (1504, 171304), (1568, 164312), (1748, 147392), (1786, 144256), (1792, 143773), (1862, 138368), (2128, 121072), (2162, 119168), (2254, 114304), (2303, 111872), (2432, 105938), (2576, 100016), (2632, 97888), (2944, 87514), (3008, 85652), (3059, 84224), (3136, 82156), (3496, 73696), (3572, 72128), (3724, 69184), (4256, 60536), (4324, 59584), (4508, 57152), (4606, 55936), (4864, 52969), (5152, 50008), (5264, 48944), (5888, 43757), (6016, 42826), (6118, 42112), (6251, 41216), (6272, 41078), (6992, 36848), (7144, 36064), (7448, 34592), (7567, 34048), (8512, 30268), (8648, 29792), (9016, 28576), (9212, 27968), (10304, 25004), (10528, 24472), (12032, 21413), (12236, 21056), (12502, 20608), (12544, 20539), (13984, 18424), (14288, 18032), (14896, 17296), (15134, 17024)]