20485220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146323}}^1$

素因数の和:146339

約数の個数: 24

約数和(自身を含む): 49164864

約数和(自身を除く): 28679644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146323, 292646, 585292, 731615, 1024261, 1463230, 2048522, 2926460, 4097044, 5121305, 10242610, 20485220]

約数ペア:

[(1, 20485220), (2, 10242610), (4, 5121305), (5, 4097044), (7, 2926460), (10, 2048522), (14, 1463230), (20, 1024261), (28, 731615), (35, 585292), (70, 292646), (140, 146323)]