20180559824

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{3978817}}^1$

素因数の和:3979142

約数の個数: 20

約数和(自身を含む): 39223187844

約数和(自身を除く): 19042628020

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 5072, 3978817, 7957634, 15915268, 31830536, 63661072, 1261284989, 2522569978, 5045139956, 10090279912, 20180559824]

約数ペア:

[(1, 20180559824), (2, 10090279912), (4, 5045139956), (8, 2522569978), (16, 1261284989), (317, 63661072), (634, 31830536), (1268, 15915268), (2536, 7957634), (5072, 3978817)]