81149068

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1559}}^1$

素因数の和:1607

約数の個数: 72

約数和(自身を含む): 191842560

約数和(自身を除く): 110693492

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 169, 182, 286, 308, 338, 364, 572, 676, 1001, 1183, 1559, 1859, 2002, 2366, 3118, 3718, 4004, 4732, 6236, 7436, 10913, 13013, 17149, 20267, 21826, 26026, 34298, 40534, 43652, 52052, 68596, 81068, 120043, 141869, 222937, 240086, 263471, 283738, 445874, 480172, 526942, 567476, 891748, 1053884, 1560559, 1844297, 2898181, 3121118, 3688594, 5796362, 6242236, 7377188, 11592724, 20287267, 40574534, 81149068]

約数ペア:

[(1, 81149068), (2, 40574534), (4, 20287267), (7, 11592724), (11, 7377188), (13, 6242236), (14, 5796362), (22, 3688594), (26, 3121118), (28, 2898181), (44, 1844297), (52, 1560559), (77, 1053884), (91, 891748), (143, 567476), (154, 526942), (169, 480172), (182, 445874), (286, 283738), (308, 263471), (338, 240086), (364, 222937), (572, 141869), (676, 120043), (1001, 81068), (1183, 68596), (1559, 52052), (1859, 43652), (2002, 40534), (2366, 34298), (3118, 26026), (3718, 21826), (4004, 20267), (4732, 17149), (6236, 13013), (7436, 10913)]