81451776

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 251820800

約数和(自身を除く): 170369024

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 109, 112, 128, 139, 168, 192, 218, 224, 256, 278, 327, 336, 384, 417, 436, 448, 556, 654, 672, 763, 768, 834, 872, 896, 973, 1112, 1308, 1344, 1526, 1668, 1744, 1792, 1946, 2224, 2289, 2616, 2688, 2919, 3052, 3336, 3488, 3892, 4448, 4578, 5232, 5376, 5838, 6104, 6672, 6976, 7784, 8896, 9156, 10464, 11676, 12208, 13344, 13952, 15151, 15568, 17792, 18312, 20928, 23352, 24416, 26688, 27904, 30302, 31136, 35584, 36624, 41856, 45453, 46704, 48832, 53376, 60604, 62272, 73248, 83712, 90906, 93408, 97664, 106057, 106752, 121208, 124544, 146496, 181812, 186816, 195328, 212114, 242416, 249088, 292992, 318171, 363624, 373632, 424228, 484832, 585984, 636342, 727248, 747264, 848456, 969664, 1272684, 1454496, 1696912, 1939328, 2545368, 2908992, 3393824, 3878656, 5090736, 5817984, 6787648, 10181472, 11635968, 13575296, 20362944, 27150592, 40725888, 81451776]

約数ペア:

[(1, 81451776), (2, 40725888), (3, 27150592), (4, 20362944), (6, 13575296), (7, 11635968), (8, 10181472), (12, 6787648), (14, 5817984), (16, 5090736), (21, 3878656), (24, 3393824), (28, 2908992), (32, 2545368), (42, 1939328), (48, 1696912), (56, 1454496), (64, 1272684), (84, 969664), (96, 848456), (109, 747264), (112, 727248), (128, 636342), (139, 585984), (168, 484832), (192, 424228), (218, 373632), (224, 363624), (256, 318171), (278, 292992), (327, 249088), (336, 242416), (384, 212114), (417, 195328), (436, 186816), (448, 181812), (556, 146496), (654, 124544), (672, 121208), (763, 106752), (768, 106057), (834, 97664), (872, 93408), (896, 90906), (973, 83712), (1112, 73248), (1308, 62272), (1344, 60604), (1526, 53376), (1668, 48832), (1744, 46704), (1792, 45453), (1946, 41856), (2224, 36624), (2289, 35584), (2616, 31136), (2688, 30302), (2919, 27904), (3052, 26688), (3336, 24416), (3488, 23352), (3892, 20928), (4448, 18312), (4578, 17792), (5232, 15568), (5376, 15151), (5838, 13952), (6104, 13344), (6672, 12208), (6976, 11676), (7784, 10464), (8896, 9156)]