256617984

素因数分解:

$2^9\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{823}}^1$

素因数の和:880

約数の個数: 160

約数和(自身を含む): 809233920

約数和(自身を除く): 552615936

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 32, 42, 48, 56, 58, 64, 84, 87, 96, 112, 116, 128, 168, 174, 192, 203, 224, 232, 256, 336, 348, 384, 406, 448, 464, 512, 609, 672, 696, 768, 812, 823, 896, 928, 1218, 1344, 1392, 1536, 1624, 1646, 1792, 1856, 2436, 2469, 2688, 2784, 3248, 3292, 3584, 3712, 4872, 4938, 5376, 5568, 5761, 6496, 6584, 7424, 9744, 9876, 10752, 11136, 11522, 12992, 13168, 14848, 17283, 19488, 19752, 22272, 23044, 23867, 25984, 26336, 34566, 38976, 39504, 44544, 46088, 47734, 51968, 52672, 69132, 71601, 77952, 79008, 92176, 95468, 103936, 105344, 138264, 143202, 155904, 158016, 167069, 184352, 190936, 210688, 276528, 286404, 311808, 316032, 334138, 368704, 381872, 421376, 501207, 553056, 572808, 632064, 668276, 737408, 763744, 1002414, 1106112, 1145616, 1264128, 1336552, 1474816, 1527488, 2004828, 2212224, 2291232, 2673104, 2949632, 3054976, 4009656, 4424448, 4582464, 5346208, 6109952, 8019312, 8848896, 9164928, 10692416, 12219904, 16038624, 18329856, 21384832, 32077248, 36659712, 42769664, 64154496, 85539328, 128308992, 256617984]

約数ペア:

[(1, 256617984), (2, 128308992), (3, 85539328), (4, 64154496), (6, 42769664), (7, 36659712), (8, 32077248), (12, 21384832), (14, 18329856), (16, 16038624), (21, 12219904), (24, 10692416), (28, 9164928), (29, 8848896), (32, 8019312), (42, 6109952), (48, 5346208), (56, 4582464), (58, 4424448), (64, 4009656), (84, 3054976), (87, 2949632), (96, 2673104), (112, 2291232), (116, 2212224), (128, 2004828), (168, 1527488), (174, 1474816), (192, 1336552), (203, 1264128), (224, 1145616), (232, 1106112), (256, 1002414), (336, 763744), (348, 737408), (384, 668276), (406, 632064), (448, 572808), (464, 553056), (512, 501207), (609, 421376), (672, 381872), (696, 368704), (768, 334138), (812, 316032), (823, 311808), (896, 286404), (928, 276528), (1218, 210688), (1344, 190936), (1392, 184352), (1536, 167069), (1624, 158016), (1646, 155904), (1792, 143202), (1856, 138264), (2436, 105344), (2469, 103936), (2688, 95468), (2784, 92176), (3248, 79008), (3292, 77952), (3584, 71601), (3712, 69132), (4872, 52672), (4938, 51968), (5376, 47734), (5568, 46088), (5761, 44544), (6496, 39504), (6584, 38976), (7424, 34566), (9744, 26336), (9876, 25984), (10752, 23867), (11136, 23044), (11522, 22272), (12992, 19752), (13168, 19488), (14848, 17283)]