254567936

素因数分解:

$2^9\times 7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 120

約数和(自身を含む): 604101960

約数和(自身を除く): 349534024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 73, 98, 112, 128, 139, 146, 196, 224, 256, 278, 292, 392, 448, 511, 512, 556, 584, 784, 896, 973, 1022, 1112, 1168, 1568, 1792, 1946, 2044, 2224, 2336, 3136, 3577, 3584, 3892, 4088, 4448, 4672, 6272, 6811, 7154, 7784, 8176, 8896, 9344, 10147, 12544, 13622, 14308, 15568, 16352, 17792, 18688, 20294, 25088, 27244, 28616, 31136, 32704, 35584, 37376, 40588, 54488, 57232, 62272, 65408, 71029, 71168, 81176, 108976, 114464, 124544, 130816, 142058, 162352, 217952, 228928, 249088, 261632, 284116, 324704, 435904, 457856, 497203, 498176, 568232, 649408, 871808, 915712, 994406, 1136464, 1298816, 1743616, 1831424, 1988812, 2272928, 2597632, 3487232, 3977624, 4545856, 5195264, 7955248, 9091712, 15910496, 18183424, 31820992, 36366848, 63641984, 127283968, 254567936]

約数ペア:

[(1, 254567936), (2, 127283968), (4, 63641984), (7, 36366848), (8, 31820992), (14, 18183424), (16, 15910496), (28, 9091712), (32, 7955248), (49, 5195264), (56, 4545856), (64, 3977624), (73, 3487232), (98, 2597632), (112, 2272928), (128, 1988812), (139, 1831424), (146, 1743616), (196, 1298816), (224, 1136464), (256, 994406), (278, 915712), (292, 871808), (392, 649408), (448, 568232), (511, 498176), (512, 497203), (556, 457856), (584, 435904), (784, 324704), (896, 284116), (973, 261632), (1022, 249088), (1112, 228928), (1168, 217952), (1568, 162352), (1792, 142058), (1946, 130816), (2044, 124544), (2224, 114464), (2336, 108976), (3136, 81176), (3577, 71168), (3584, 71029), (3892, 65408), (4088, 62272), (4448, 57232), (4672, 54488), (6272, 40588), (6811, 37376), (7154, 35584), (7784, 32704), (8176, 31136), (8896, 28616), (9344, 27244), (10147, 25088), (12544, 20294), (13622, 18688), (14308, 17792), (15568, 16352)]