81440128

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8263}}^1$

素因数の和:8295

約数の個数: 64

約数和(自身を含む): 202302720

約数和(自身を除く): 120862592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2464, 4928, 8263, 9856, 16526, 33052, 57841, 66104, 90893, 115682, 132208, 181786, 231364, 264416, 363572, 462728, 528832, 636251, 727144, 925456, 1057664, 1272502, 1454288, 1850912, 2545004, 2908576, 3701824, 5090008, 5817152, 7403648, 10180016, 11634304, 20360032, 40720064, 81440128]

約数ペア:

[(1, 81440128), (2, 40720064), (4, 20360032), (7, 11634304), (8, 10180016), (11, 7403648), (14, 5817152), (16, 5090008), (22, 3701824), (28, 2908576), (32, 2545004), (44, 1850912), (56, 1454288), (64, 1272502), (77, 1057664), (88, 925456), (112, 727144), (128, 636251), (154, 528832), (176, 462728), (224, 363572), (308, 264416), (352, 231364), (448, 181786), (616, 132208), (704, 115682), (896, 90893), (1232, 66104), (1408, 57841), (2464, 33052), (4928, 16526), (8263, 9856)]