156972020

素因数分解:

$2^2\times 5^1\times {\mathrm{7848601}}^1$

素因数の和:7848610

約数の個数: 12

約数和(自身を含む): 329641284

約数和(自身を除く): 172669264

約数列:

[1, 2, 4, 5, 10, 20, 7848601, 15697202, 31394404, 39243005, 78486010, 156972020]

約数ペア:

[(1, 156972020), (2, 78486010), (4, 39243005), (5, 31394404), (10, 15697202), (20, 7848601)]