256019904

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 252

約数和(自身を含む): 876324384

約数和(自身を除く): 620304480

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 47, 48, 49, 56, 63, 64, 72, 84, 94, 96, 98, 112, 126, 141, 144, 147, 168, 188, 192, 193, 196, 224, 252, 282, 288, 294, 329, 336, 376, 386, 392, 423, 441, 448, 504, 564, 576, 579, 588, 658, 672, 752, 772, 784, 846, 882, 987, 1008, 1128, 1158, 1176, 1316, 1344, 1351, 1504, 1544, 1568, 1692, 1737, 1764, 1974, 2016, 2256, 2303, 2316, 2352, 2632, 2702, 2961, 3008, 3088, 3136, 3384, 3474, 3528, 3948, 4032, 4053, 4512, 4606, 4632, 4704, 5264, 5404, 5922, 6176, 6768, 6909, 6948, 7056, 7896, 8106, 9024, 9071, 9212, 9264, 9408, 9457, 10528, 10808, 11844, 12159, 12352, 13536, 13818, 13896, 14112, 15792, 16212, 18142, 18424, 18528, 18914, 20727, 21056, 21616, 23688, 24318, 27072, 27213, 27636, 27792, 28224, 28371, 31584, 32424, 36284, 36848, 37056, 37828, 41454, 43232, 47376, 48636, 54426, 55272, 55584, 56742, 63168, 63497, 64848, 72568, 73696, 75656, 81639, 82908, 85113, 86464, 94752, 97272, 108852, 110544, 111168, 113484, 126994, 129696, 145136, 147392, 151312, 163278, 165816, 170226, 189504, 190491, 194544, 217704, 221088, 226968, 253988, 259392, 290272, 302624, 326556, 331632, 340452, 380982, 389088, 435408, 442176, 444479, 453936, 507976, 571473, 580544, 605248, 653112, 663264, 680904, 761964, 778176, 870816, 888958, 907872, 1015952, 1142946, 1306224, 1326528, 1333437, 1361808, 1523928, 1741632, 1777916, 1815744, 2031904, 2285892, 2612448, 2666874, 2723616, 3047856, 3555832, 4000311, 4063808, 4571784, 5224896, 5333748, 5447232, 6095712, 7111664, 8000622, 9143568, 10667496, 12191424, 14223328, 16001244, 18287136, 21334992, 28446656, 32002488, 36574272, 42669984, 64004976, 85339968, 128009952, 256019904]

約数ペア:

[(1, 256019904), (2, 128009952), (3, 85339968), (4, 64004976), (6, 42669984), (7, 36574272), (8, 32002488), (9, 28446656), (12, 21334992), (14, 18287136), (16, 16001244), (18, 14223328), (21, 12191424), (24, 10667496), (28, 9143568), (32, 8000622), (36, 7111664), (42, 6095712), (47, 5447232), (48, 5333748), (49, 5224896), (56, 4571784), (63, 4063808), (64, 4000311), (72, 3555832), (84, 3047856), (94, 2723616), (96, 2666874), (98, 2612448), (112, 2285892), (126, 2031904), (141, 1815744), (144, 1777916), (147, 1741632), (168, 1523928), (188, 1361808), (192, 1333437), (193, 1326528), (196, 1306224), (224, 1142946), (252, 1015952), (282, 907872), (288, 888958), (294, 870816), (329, 778176), (336, 761964), (376, 680904), (386, 663264), (392, 653112), (423, 605248), (441, 580544), (448, 571473), (504, 507976), (564, 453936), (576, 444479), (579, 442176), (588, 435408), (658, 389088), (672, 380982), (752, 340452), (772, 331632), (784, 326556), (846, 302624), (882, 290272), (987, 259392), (1008, 253988), (1128, 226968), (1158, 221088), (1176, 217704), (1316, 194544), (1344, 190491), (1351, 189504), (1504, 170226), (1544, 165816), (1568, 163278), (1692, 151312), (1737, 147392), (1764, 145136), (1974, 129696), (2016, 126994), (2256, 113484), (2303, 111168), (2316, 110544), (2352, 108852), (2632, 97272), (2702, 94752), (2961, 86464), (3008, 85113), (3088, 82908), (3136, 81639), (3384, 75656), (3474, 73696), (3528, 72568), (3948, 64848), (4032, 63497), (4053, 63168), (4512, 56742), (4606, 55584), (4632, 55272), (4704, 54426), (5264, 48636), (5404, 47376), (5922, 43232), (6176, 41454), (6768, 37828), (6909, 37056), (6948, 36848), (7056, 36284), (7896, 32424), (8106, 31584), (9024, 28371), (9071, 28224), (9212, 27792), (9264, 27636), (9408, 27213), (9457, 27072), (10528, 24318), (10808, 23688), (11844, 21616), (12159, 21056), (12352, 20727), (13536, 18914), (13818, 18528), (13896, 18424), (14112, 18142), (15792, 16212)]