257415816

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:384

約数の個数: 192

約数和(自身を含む): 808980480

約数和(自身を除く): 551564664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 31, 42, 46, 49, 56, 62, 69, 84, 92, 93, 98, 124, 138, 147, 161, 168, 184, 186, 196, 217, 248, 276, 294, 307, 322, 372, 392, 434, 483, 552, 588, 614, 644, 651, 713, 744, 868, 921, 966, 1127, 1176, 1228, 1288, 1302, 1426, 1519, 1736, 1842, 1932, 2139, 2149, 2254, 2456, 2604, 2852, 3038, 3381, 3684, 3864, 4278, 4298, 4508, 4557, 4991, 5208, 5704, 6076, 6447, 6762, 7061, 7368, 8556, 8596, 9016, 9114, 9517, 9982, 12152, 12894, 13524, 14122, 14973, 15043, 17112, 17192, 18228, 19034, 19964, 21183, 25788, 27048, 28244, 28551, 29946, 30086, 34937, 36456, 38068, 39928, 42366, 45129, 49427, 51576, 56488, 57102, 59892, 60172, 66619, 69874, 76136, 84732, 90258, 98854, 104811, 114204, 119784, 120344, 133238, 139748, 148281, 169464, 180516, 197708, 199857, 209622, 218891, 228408, 266476, 279496, 296562, 345989, 361032, 395416, 399714, 419244, 437782, 466333, 532952, 593124, 656673, 691978, 799428, 838488, 875564, 932666, 1037967, 1186248, 1313346, 1383956, 1398999, 1532237, 1598856, 1751128, 1865332, 2075934, 2626692, 2767912, 2797998, 3064474, 3730664, 4151868, 4596711, 5253384, 5595996, 6128948, 8303736, 9193422, 10725659, 11191992, 12257896, 18386844, 21451318, 32176977, 36773688, 42902636, 64353954, 85805272, 128707908, 257415816]

約数ペア:

[(1, 257415816), (2, 128707908), (3, 85805272), (4, 64353954), (6, 42902636), (7, 36773688), (8, 32176977), (12, 21451318), (14, 18386844), (21, 12257896), (23, 11191992), (24, 10725659), (28, 9193422), (31, 8303736), (42, 6128948), (46, 5595996), (49, 5253384), (56, 4596711), (62, 4151868), (69, 3730664), (84, 3064474), (92, 2797998), (93, 2767912), (98, 2626692), (124, 2075934), (138, 1865332), (147, 1751128), (161, 1598856), (168, 1532237), (184, 1398999), (186, 1383956), (196, 1313346), (217, 1186248), (248, 1037967), (276, 932666), (294, 875564), (307, 838488), (322, 799428), (372, 691978), (392, 656673), (434, 593124), (483, 532952), (552, 466333), (588, 437782), (614, 419244), (644, 399714), (651, 395416), (713, 361032), (744, 345989), (868, 296562), (921, 279496), (966, 266476), (1127, 228408), (1176, 218891), (1228, 209622), (1288, 199857), (1302, 197708), (1426, 180516), (1519, 169464), (1736, 148281), (1842, 139748), (1932, 133238), (2139, 120344), (2149, 119784), (2254, 114204), (2456, 104811), (2604, 98854), (2852, 90258), (3038, 84732), (3381, 76136), (3684, 69874), (3864, 66619), (4278, 60172), (4298, 59892), (4508, 57102), (4557, 56488), (4991, 51576), (5208, 49427), (5704, 45129), (6076, 42366), (6447, 39928), (6762, 38068), (7061, 36456), (7368, 34937), (8556, 30086), (8596, 29946), (9016, 28551), (9114, 28244), (9517, 27048), (9982, 25788), (12152, 21183), (12894, 19964), (13524, 19034), (14122, 18228), (14973, 17192), (15043, 17112)]