19901980802

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{89153}}^1$

素因数の和:89378

約数の個数: 32

約数和(自身を含む): 33250875840

約数和(自身を除く): 13348895038

約数列:

[1, 2, 11, 22, 73, 139, 146, 278, 803, 1529, 1606, 3058, 10147, 20294, 89153, 111617, 178306, 223234, 980683, 1961366, 6508169, 12392267, 13016338, 24784534, 71589859, 136314937, 143179718, 272629874, 904635491, 1809270982, 9950990401, 19901980802]

約数ペア:

[(1, 19901980802), (2, 9950990401), (11, 1809270982), (22, 904635491), (73, 272629874), (139, 143179718), (146, 136314937), (278, 71589859), (803, 24784534), (1529, 13016338), (1606, 12392267), (3058, 6508169), (10147, 1961366), (20294, 980683), (89153, 223234), (111617, 178306)]