20509810

素因数分解:

$2^1\times 5^1\times {\mathrm{751}}^1\times {\mathrm{2731}}^1$

素因数の和:3489

約数の個数: 16

約数和(自身を含む): 36980352

約数和(自身を除く): 16470542

約数列:

[1, 2, 5, 10, 751, 1502, 2731, 3755, 5462, 7510, 13655, 27310, 2050981, 4101962, 10254905, 20509810]

約数ペア:

[(1, 20509810), (2, 10254905), (5, 4101962), (10, 2050981), (751, 27310), (1502, 13655), (2731, 7510), (3755, 5462)]