80455440784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{122645489}}^1$

素因数の和:122645538

約数の個数: 20

約数和(自身を含む): 159684427980

約数和(自身を除く): 79228987196

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 122645489, 245290978, 490581956, 981163912, 1962327824, 5028465049, 10056930098, 20113860196, 40227720392, 80455440784]

約数ペア:

[(1, 80455440784), (2, 40227720392), (4, 20113860196), (8, 10056930098), (16, 5028465049), (41, 1962327824), (82, 981163912), (164, 490581956), (328, 245290978), (656, 122645489)]