20775788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20592532

約数列:

[1, 2, 4, 11, 22, 44, 53, 59, 106, 118, 151, 212, 236, 302, 583, 604, 649, 1166, 1298, 1661, 2332, 2596, 3127, 3322, 6254, 6644, 8003, 8909, 12508, 16006, 17818, 32012, 34397, 35636, 68794, 88033, 97999, 137588, 176066, 195998, 352132, 391996, 472177, 944354, 1888708, 5193947, 10387894, 20775788]

約数ペア:

[(1, 20775788), (2, 10387894), (4, 5193947), (11, 1888708), (22, 944354), (44, 472177), (53, 391996), (59, 352132), (106, 195998), (118, 176066), (151, 137588), (212, 97999), (236, 88033), (302, 68794), (583, 35636), (604, 34397), (649, 32012), (1166, 17818), (1298, 16006), (1661, 12508), (2332, 8909), (2596, 8003), (3127, 6644), (3322, 6254)]