81216256

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 178956288

約数和(自身を除く): 97740032

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 151, 176, 191, 256, 302, 352, 382, 604, 704, 764, 1208, 1408, 1528, 1661, 2101, 2416, 2816, 3056, 3322, 4202, 4832, 6112, 6644, 8404, 9664, 12224, 13288, 16808, 19328, 24448, 26576, 28841, 33616, 38656, 48896, 53152, 57682, 67232, 106304, 115364, 134464, 212608, 230728, 268928, 317251, 425216, 461456, 537856, 634502, 922912, 1269004, 1845824, 2538008, 3691648, 5076016, 7383296, 10152032, 20304064, 40608128, 81216256]

約数ペア:

[(1, 81216256), (2, 40608128), (4, 20304064), (8, 10152032), (11, 7383296), (16, 5076016), (22, 3691648), (32, 2538008), (44, 1845824), (64, 1269004), (88, 922912), (128, 634502), (151, 537856), (176, 461456), (191, 425216), (256, 317251), (302, 268928), (352, 230728), (382, 212608), (604, 134464), (704, 115364), (764, 106304), (1208, 67232), (1408, 57682), (1528, 53152), (1661, 48896), (2101, 38656), (2416, 33616), (2816, 28841), (3056, 26576), (3322, 24448), (4202, 19328), (4832, 16808), (6112, 13288), (6644, 12224), (8404, 9664)]