80821168

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{123203}}^1$

素因数の和:123252

約数の個数: 20

約数和(自身を含む): 160411608

約数和(自身を除く): 79590440

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 123203, 246406, 492812, 985624, 1971248, 5051323, 10102646, 20205292, 40410584, 80821168]

約数ペア:

[(1, 80821168), (2, 40410584), (4, 20205292), (8, 10102646), (16, 5051323), (41, 1971248), (82, 985624), (164, 492812), (328, 246406), (656, 123203)]