81464656

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{7993}}^1$

素因数の和:8028

約数の個数: 60

約数和(自身を含む): 197755572

約数和(自身を除く): 116290916

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2548, 5096, 7993, 10192, 15986, 31972, 55951, 63944, 103909, 111902, 127888, 207818, 223804, 391657, 415636, 447608, 727363, 783314, 831272, 895216, 1454726, 1566628, 1662544, 2909452, 3133256, 5091541, 5818904, 6266512, 10183082, 11637808, 20366164, 40732328, 81464656]

約数ペア:

[(1, 81464656), (2, 40732328), (4, 20366164), (7, 11637808), (8, 10183082), (13, 6266512), (14, 5818904), (16, 5091541), (26, 3133256), (28, 2909452), (49, 1662544), (52, 1566628), (56, 1454726), (91, 895216), (98, 831272), (104, 783314), (112, 727363), (182, 447608), (196, 415636), (208, 391657), (364, 223804), (392, 207818), (637, 127888), (728, 111902), (784, 103909), (1274, 63944), (1456, 55951), (2548, 31972), (5096, 15986), (7993, 10192)]