16391020

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1109}}^1$

素因数の和:1857

約数の個数: 24

約数和(自身を含む): 34498800

約数和(自身を除く): 18107780

約数列:

[1, 2, 4, 5, 10, 20, 739, 1109, 1478, 2218, 2956, 3695, 4436, 5545, 7390, 11090, 14780, 22180, 819551, 1639102, 3278204, 4097755, 8195510, 16391020]

約数ペア:

[(1, 16391020), (2, 8195510), (4, 4097755), (5, 3278204), (10, 1639102), (20, 819551), (739, 22180), (1109, 14780), (1478, 11090), (2218, 7390), (2956, 5545), (3695, 4436)]