257488128

素因数分解:

$2^8\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:201

約数の個数: 216

約数和(自身を含む): 799710912

約数和(自身を除く): 542222784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 43, 46, 48, 64, 69, 72, 86, 92, 96, 113, 128, 129, 138, 144, 172, 184, 192, 207, 226, 256, 258, 276, 288, 339, 344, 368, 384, 387, 414, 452, 516, 552, 576, 678, 688, 736, 768, 774, 828, 904, 989, 1017, 1032, 1104, 1152, 1356, 1376, 1472, 1548, 1656, 1808, 1978, 2034, 2064, 2208, 2304, 2599, 2712, 2752, 2944, 2967, 3096, 3312, 3616, 3956, 4068, 4128, 4416, 4859, 5198, 5424, 5504, 5888, 5934, 6192, 6624, 7232, 7797, 7912, 8136, 8256, 8832, 8901, 9718, 10396, 10848, 11008, 11868, 12384, 13248, 14464, 14577, 15594, 15824, 16272, 16512, 17664, 17802, 19436, 20792, 21696, 23391, 23736, 24768, 26496, 28928, 29154, 31188, 31648, 32544, 33024, 35604, 38872, 41584, 43392, 43731, 46782, 47472, 49536, 52992, 58308, 62376, 63296, 65088, 71208, 77744, 83168, 86784, 87462, 93564, 94944, 99072, 111757, 116616, 124752, 126592, 130176, 142416, 155488, 166336, 174924, 187128, 189888, 223514, 233232, 249504, 253184, 260352, 284832, 310976, 332672, 335271, 349848, 374256, 379776, 447028, 466464, 499008, 569664, 621952, 665344, 670542, 699696, 748512, 759552, 894056, 932928, 998016, 1005813, 1139328, 1243904, 1341084, 1399392, 1497024, 1788112, 1865856, 1996032, 2011626, 2278656, 2682168, 2798784, 2994048, 3576224, 3731712, 4023252, 5364336, 5597568, 5988096, 7152448, 8046504, 10728672, 11195136, 14304896, 16093008, 21457344, 28609792, 32186016, 42914688, 64372032, 85829376, 128744064, 257488128]

約数ペア:

[(1, 257488128), (2, 128744064), (3, 85829376), (4, 64372032), (6, 42914688), (8, 32186016), (9, 28609792), (12, 21457344), (16, 16093008), (18, 14304896), (23, 11195136), (24, 10728672), (32, 8046504), (36, 7152448), (43, 5988096), (46, 5597568), (48, 5364336), (64, 4023252), (69, 3731712), (72, 3576224), (86, 2994048), (92, 2798784), (96, 2682168), (113, 2278656), (128, 2011626), (129, 1996032), (138, 1865856), (144, 1788112), (172, 1497024), (184, 1399392), (192, 1341084), (207, 1243904), (226, 1139328), (256, 1005813), (258, 998016), (276, 932928), (288, 894056), (339, 759552), (344, 748512), (368, 699696), (384, 670542), (387, 665344), (414, 621952), (452, 569664), (516, 499008), (552, 466464), (576, 447028), (678, 379776), (688, 374256), (736, 349848), (768, 335271), (774, 332672), (828, 310976), (904, 284832), (989, 260352), (1017, 253184), (1032, 249504), (1104, 233232), (1152, 223514), (1356, 189888), (1376, 187128), (1472, 174924), (1548, 166336), (1656, 155488), (1808, 142416), (1978, 130176), (2034, 126592), (2064, 124752), (2208, 116616), (2304, 111757), (2599, 99072), (2712, 94944), (2752, 93564), (2944, 87462), (2967, 86784), (3096, 83168), (3312, 77744), (3616, 71208), (3956, 65088), (4068, 63296), (4128, 62376), (4416, 58308), (4859, 52992), (5198, 49536), (5424, 47472), (5504, 46782), (5888, 43731), (5934, 43392), (6192, 41584), (6624, 38872), (7232, 35604), (7797, 33024), (7912, 32544), (8136, 31648), (8256, 31188), (8832, 29154), (8901, 28928), (9718, 26496), (10396, 24768), (10848, 23736), (11008, 23391), (11868, 21696), (12384, 20792), (13248, 19436), (14464, 17802), (14577, 17664), (15594, 16512), (15824, 16272)]