77721856

素因数分解:

$2^8\times {\mathrm{19}}^2\times {\mathrm{29}}^2$

素因数の和:112

約数の個数: 81

約数和(自身を含む): 169575861

約数和(自身を除く): 91854005

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 128, 152, 232, 256, 304, 361, 464, 551, 608, 722, 841, 928, 1102, 1216, 1444, 1682, 1856, 2204, 2432, 2888, 3364, 3712, 4408, 4864, 5776, 6728, 7424, 8816, 10469, 11552, 13456, 15979, 17632, 20938, 23104, 26912, 31958, 35264, 41876, 46208, 53824, 63916, 70528, 83752, 92416, 107648, 127832, 141056, 167504, 215296, 255664, 303601, 335008, 511328, 607202, 670016, 1022656, 1214404, 1340032, 2045312, 2428808, 2680064, 4090624, 4857616, 9715232, 19430464, 38860928, 77721856]

約数ペア:

[(1, 77721856), (2, 38860928), (4, 19430464), (8, 9715232), (16, 4857616), (19, 4090624), (29, 2680064), (32, 2428808), (38, 2045312), (58, 1340032), (64, 1214404), (76, 1022656), (116, 670016), (128, 607202), (152, 511328), (232, 335008), (256, 303601), (304, 255664), (361, 215296), (464, 167504), (551, 141056), (608, 127832), (722, 107648), (841, 92416), (928, 83752), (1102, 70528), (1216, 63916), (1444, 53824), (1682, 46208), (1856, 41876), (2204, 35264), (2432, 31958), (2888, 26912), (3364, 23104), (3712, 20938), (4408, 17632), (4864, 15979), (5776, 13456), (6728, 11552), (7424, 10469)]