256137728

素因数分解:

$2^9\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 160

約数和(自身を含む): 654065280

約数和(自身を除く): 397927552

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 73, 77, 88, 89, 112, 128, 146, 154, 176, 178, 224, 256, 292, 308, 352, 356, 448, 511, 512, 584, 616, 623, 704, 712, 803, 896, 979, 1022, 1168, 1232, 1246, 1408, 1424, 1606, 1792, 1958, 2044, 2336, 2464, 2492, 2816, 2848, 3212, 3584, 3916, 4088, 4672, 4928, 4984, 5621, 5632, 5696, 6424, 6497, 6853, 7832, 8176, 9344, 9856, 9968, 11242, 11392, 12848, 12994, 13706, 15664, 16352, 18688, 19712, 19936, 22484, 22784, 25696, 25988, 27412, 31328, 32704, 37376, 39424, 39872, 44968, 45479, 45568, 51392, 51976, 54824, 62656, 65408, 71467, 79744, 89936, 90958, 102784, 103952, 109648, 125312, 130816, 142934, 159488, 179872, 181916, 205568, 207904, 219296, 250624, 261632, 285868, 318976, 359744, 363832, 411136, 415808, 438592, 500269, 501248, 571736, 719488, 727664, 831616, 877184, 1000538, 1143472, 1438976, 1455328, 1663232, 1754368, 2001076, 2286944, 2877952, 2910656, 3326464, 3508736, 4002152, 4573888, 5821312, 8004304, 9147776, 11642624, 16008608, 18295552, 23285248, 32017216, 36591104, 64034432, 128068864, 256137728]

約数ペア:

[(1, 256137728), (2, 128068864), (4, 64034432), (7, 36591104), (8, 32017216), (11, 23285248), (14, 18295552), (16, 16008608), (22, 11642624), (28, 9147776), (32, 8004304), (44, 5821312), (56, 4573888), (64, 4002152), (73, 3508736), (77, 3326464), (88, 2910656), (89, 2877952), (112, 2286944), (128, 2001076), (146, 1754368), (154, 1663232), (176, 1455328), (178, 1438976), (224, 1143472), (256, 1000538), (292, 877184), (308, 831616), (352, 727664), (356, 719488), (448, 571736), (511, 501248), (512, 500269), (584, 438592), (616, 415808), (623, 411136), (704, 363832), (712, 359744), (803, 318976), (896, 285868), (979, 261632), (1022, 250624), (1168, 219296), (1232, 207904), (1246, 205568), (1408, 181916), (1424, 179872), (1606, 159488), (1792, 142934), (1958, 130816), (2044, 125312), (2336, 109648), (2464, 103952), (2492, 102784), (2816, 90958), (2848, 89936), (3212, 79744), (3584, 71467), (3916, 65408), (4088, 62656), (4672, 54824), (4928, 51976), (4984, 51392), (5621, 45568), (5632, 45479), (5696, 44968), (6424, 39872), (6497, 39424), (6853, 37376), (7832, 32704), (8176, 31328), (9344, 27412), (9856, 25988), (9968, 25696), (11242, 22784), (11392, 22484), (12848, 19936), (12994, 19712), (13706, 18688), (15664, 16352)]