20115904

素因数分解:

$2^6\times {\mathrm{257}}^1\times {\mathrm{1223}}^1$

素因数の和:1492

約数の個数: 28

約数和(自身を含む): 40105584

約数和(自身を除く): 19989680

約数列:

[1, 2, 4, 8, 16, 32, 64, 257, 514, 1028, 1223, 2056, 2446, 4112, 4892, 8224, 9784, 16448, 19568, 39136, 78272, 314311, 628622, 1257244, 2514488, 5028976, 10057952, 20115904]

約数ペア:

[(1, 20115904), (2, 10057952), (4, 5028976), (8, 2514488), (16, 1257244), (32, 628622), (64, 314311), (257, 78272), (514, 39136), (1028, 19568), (1223, 16448), (2056, 9784), (2446, 8224), (4112, 4892)]