256127328

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:365

約数の個数: 144

約数和(自身を含む): 756756000

約数和(自身を除く): 500628672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 48, 72, 82, 96, 109, 123, 144, 164, 199, 218, 246, 288, 327, 328, 369, 398, 436, 492, 597, 654, 656, 738, 796, 872, 981, 984, 1194, 1308, 1312, 1476, 1592, 1744, 1791, 1962, 1968, 2388, 2616, 2952, 3184, 3488, 3582, 3924, 3936, 4469, 4776, 5232, 5904, 6368, 7164, 7848, 8159, 8938, 9552, 10464, 11808, 13407, 14328, 15696, 16318, 17876, 19104, 21691, 24477, 26814, 28656, 31392, 32636, 35752, 40221, 43382, 48954, 53628, 57312, 65073, 65272, 71504, 73431, 80442, 86764, 97908, 107256, 130146, 130544, 143008, 146862, 160884, 173528, 195219, 195816, 214512, 260292, 261088, 293724, 321768, 347056, 390438, 391632, 429024, 520584, 587448, 643536, 694112, 780876, 783264, 889331, 1041168, 1174896, 1287072, 1561752, 1778662, 2082336, 2349792, 2667993, 3123504, 3557324, 5335986, 6247008, 7114648, 8003979, 10671972, 14229296, 16007958, 21343944, 28458592, 32015916, 42687888, 64031832, 85375776, 128063664, 256127328]

約数ペア:

[(1, 256127328), (2, 128063664), (3, 85375776), (4, 64031832), (6, 42687888), (8, 32015916), (9, 28458592), (12, 21343944), (16, 16007958), (18, 14229296), (24, 10671972), (32, 8003979), (36, 7114648), (41, 6247008), (48, 5335986), (72, 3557324), (82, 3123504), (96, 2667993), (109, 2349792), (123, 2082336), (144, 1778662), (164, 1561752), (199, 1287072), (218, 1174896), (246, 1041168), (288, 889331), (327, 783264), (328, 780876), (369, 694112), (398, 643536), (436, 587448), (492, 520584), (597, 429024), (654, 391632), (656, 390438), (738, 347056), (796, 321768), (872, 293724), (981, 261088), (984, 260292), (1194, 214512), (1308, 195816), (1312, 195219), (1476, 173528), (1592, 160884), (1744, 146862), (1791, 143008), (1962, 130544), (1968, 130146), (2388, 107256), (2616, 97908), (2952, 86764), (3184, 80442), (3488, 73431), (3582, 71504), (3924, 65272), (3936, 65073), (4469, 57312), (4776, 53628), (5232, 48954), (5904, 43382), (6368, 40221), (7164, 35752), (7848, 32636), (8159, 31392), (8938, 28656), (9552, 26814), (10464, 24477), (11808, 21691), (13407, 19104), (14328, 17876), (15696, 16318)]