289047025

素因数分解:

$5^2\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{373}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 363587840

約数和(自身を除く): 74540815

約数列:

[1, 5, 25, 139, 223, 373, 695, 1115, 1865, 3475, 5575, 9325, 30997, 51847, 83179, 154985, 259235, 415895, 774925, 1296175, 2079475, 11561881, 57809405, 289047025]

約数ペア:

[(1, 289047025), (5, 57809405), (25, 11561881), (139, 2079475), (223, 1296175), (373, 774925), (695, 415895), (1115, 259235), (1865, 154985), (3475, 83179), (5575, 51847), (9325, 30997)]