12818420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3541}}^1$

素因数の和:3731

約数の個数: 24

約数和(自身を含む): 27075048

約数和(自身を除く): 14256628

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3541, 3620, 7082, 14164, 17705, 35410, 70820, 640921, 1281842, 2563684, 3204605, 6409210, 12818420]

約数ペア:

[(1, 12818420), (2, 6409210), (4, 3204605), (5, 2563684), (10, 1281842), (20, 640921), (181, 70820), (362, 35410), (724, 17705), (905, 14164), (1810, 7082), (3541, 3620)]