78877820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563413}}^1$

素因数の和:563429

約数の個数: 24

約数和(自身を含む): 189307104

約数和(自身を除く): 110429284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563413, 1126826, 2253652, 2817065, 3943891, 5634130, 7887782, 11268260, 15775564, 19719455, 39438910, 78877820]

約数ペア:

[(1, 78877820), (2, 39438910), (4, 19719455), (5, 15775564), (7, 11268260), (10, 7887782), (14, 5634130), (20, 3943891), (28, 2817065), (35, 2253652), (70, 1126826), (140, 563413)]