20384420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145603}}^1$

素因数の和:145619

約数の個数: 24

約数和(自身を含む): 48922944

約数和(自身を除く): 28538524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145603, 291206, 582412, 728015, 1019221, 1456030, 2038442, 2912060, 4076884, 5096105, 10192210, 20384420]

約数ペア:

[(1, 20384420), (2, 10192210), (4, 5096105), (5, 4076884), (7, 2912060), (10, 2038442), (14, 1456030), (20, 1019221), (28, 728015), (35, 582412), (70, 291206), (140, 145603)]