20512120

素因数分解:

$2^3\times 5^1\times {\mathrm{512803}}^1$

素因数の和:512814

約数の個数: 16

約数和(自身を含む): 46152360

約数和(自身を除く): 25640240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512803, 1025606, 2051212, 2564015, 4102424, 5128030, 10256060, 20512120]

約数ペア:

[(1, 20512120), (2, 10256060), (4, 5128030), (5, 4102424), (8, 2564015), (10, 2051212), (20, 1025606), (40, 512803)]