20682068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 41174784

約数和(自身を除く): 20492716

約数列:

[1, 2, 4, 11, 22, 44, 47, 73, 94, 137, 146, 188, 274, 292, 517, 548, 803, 1034, 1507, 1606, 2068, 3014, 3212, 3431, 6028, 6439, 6862, 10001, 12878, 13724, 20002, 25756, 37741, 40004, 70829, 75482, 110011, 141658, 150964, 220022, 283316, 440044, 470047, 940094, 1880188, 5170517, 10341034, 20682068]

約数ペア:

[(1, 20682068), (2, 10341034), (4, 5170517), (11, 1880188), (22, 940094), (44, 470047), (47, 440044), (73, 283316), (94, 220022), (137, 150964), (146, 141658), (188, 110011), (274, 75482), (292, 70829), (517, 40004), (548, 37741), (803, 25756), (1034, 20002), (1507, 13724), (1606, 12878), (2068, 10001), (3014, 6862), (3212, 6439), (3431, 6028)]