256527648

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 240

約数和(自身を含む): 850360896

約数和(自身を除く): 593833248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 27, 32, 36, 39, 46, 48, 52, 54, 69, 72, 78, 81, 92, 96, 104, 108, 117, 138, 144, 156, 162, 184, 207, 208, 216, 234, 276, 288, 299, 312, 324, 331, 351, 368, 414, 416, 432, 468, 552, 598, 621, 624, 648, 662, 702, 736, 828, 864, 897, 936, 993, 1053, 1104, 1196, 1242, 1248, 1296, 1324, 1404, 1656, 1794, 1863, 1872, 1986, 2106, 2208, 2392, 2484, 2592, 2648, 2691, 2808, 2979, 3312, 3588, 3726, 3744, 3972, 4212, 4303, 4784, 4968, 5296, 5382, 5616, 5958, 6624, 7176, 7452, 7613, 7944, 8073, 8424, 8606, 8937, 9568, 9936, 10592, 10764, 11232, 11916, 12909, 14352, 14904, 15226, 15888, 16146, 16848, 17212, 17874, 19872, 21528, 22839, 23832, 24219, 25818, 26811, 28704, 29808, 30452, 31776, 32292, 33696, 34424, 35748, 38727, 43056, 45678, 47664, 48438, 51636, 53622, 59616, 60904, 64584, 68517, 68848, 71496, 77454, 86112, 91356, 95328, 96876, 98969, 103272, 107244, 116181, 121808, 129168, 137034, 137696, 142992, 154908, 182712, 193752, 197938, 205551, 206544, 214488, 232362, 243616, 258336, 274068, 285984, 296907, 309816, 348543, 365424, 387504, 395876, 411102, 413088, 428976, 464724, 548136, 593814, 616653, 619632, 697086, 730848, 775008, 791752, 822204, 857952, 890721, 929448, 1096272, 1187628, 1233306, 1239264, 1394172, 1583504, 1644408, 1781442, 1858896, 2192544, 2375256, 2466612, 2672163, 2788344, 3167008, 3288816, 3562884, 3717792, 4750512, 4933224, 5344326, 5576688, 6577632, 7125768, 8016489, 9501024, 9866448, 10688652, 11153376, 14251536, 16032978, 19732896, 21377304, 28503072, 32065956, 42754608, 64131912, 85509216, 128263824, 256527648]

約数ペア:

[(1, 256527648), (2, 128263824), (3, 85509216), (4, 64131912), (6, 42754608), (8, 32065956), (9, 28503072), (12, 21377304), (13, 19732896), (16, 16032978), (18, 14251536), (23, 11153376), (24, 10688652), (26, 9866448), (27, 9501024), (32, 8016489), (36, 7125768), (39, 6577632), (46, 5576688), (48, 5344326), (52, 4933224), (54, 4750512), (69, 3717792), (72, 3562884), (78, 3288816), (81, 3167008), (92, 2788344), (96, 2672163), (104, 2466612), (108, 2375256), (117, 2192544), (138, 1858896), (144, 1781442), (156, 1644408), (162, 1583504), (184, 1394172), (207, 1239264), (208, 1233306), (216, 1187628), (234, 1096272), (276, 929448), (288, 890721), (299, 857952), (312, 822204), (324, 791752), (331, 775008), (351, 730848), (368, 697086), (414, 619632), (416, 616653), (432, 593814), (468, 548136), (552, 464724), (598, 428976), (621, 413088), (624, 411102), (648, 395876), (662, 387504), (702, 365424), (736, 348543), (828, 309816), (864, 296907), (897, 285984), (936, 274068), (993, 258336), (1053, 243616), (1104, 232362), (1196, 214488), (1242, 206544), (1248, 205551), (1296, 197938), (1324, 193752), (1404, 182712), (1656, 154908), (1794, 142992), (1863, 137696), (1872, 137034), (1986, 129168), (2106, 121808), (2208, 116181), (2392, 107244), (2484, 103272), (2592, 98969), (2648, 96876), (2691, 95328), (2808, 91356), (2979, 86112), (3312, 77454), (3588, 71496), (3726, 68848), (3744, 68517), (3972, 64584), (4212, 60904), (4303, 59616), (4784, 53622), (4968, 51636), (5296, 48438), (5382, 47664), (5616, 45678), (5958, 43056), (6624, 38727), (7176, 35748), (7452, 34424), (7613, 33696), (7944, 32292), (8073, 31776), (8424, 30452), (8606, 29808), (8937, 28704), (9568, 26811), (9936, 25818), (10592, 24219), (10764, 23832), (11232, 22839), (11916, 21528), (12909, 19872), (14352, 17874), (14904, 17212), (15226, 16848), (15888, 16146)]