20180772848

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{3978859}}^1$

素因数の和:3979184

約数の個数: 20

約数和(自身を含む): 39223601880

約数和(自身を除く): 19042829032

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 5072, 3978859, 7957718, 15915436, 31830872, 63661744, 1261298303, 2522596606, 5045193212, 10090386424, 20180772848]

約数ペア:

[(1, 20180772848), (2, 10090386424), (4, 5045193212), (8, 2522596606), (16, 1261298303), (317, 63661744), (634, 31830872), (1268, 15915436), (2536, 7957718), (5072, 3978859)]