5181620

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^2$

素因数の和:1027

約数の個数: 18

約数和(自身を含む): 10902822

約数和(自身を除く): 5721202

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 259081, 518162, 1036324, 1295405, 2590810, 5181620]

約数ペア:

[(1, 5181620), (2, 2590810), (4, 1295405), (5, 1036324), (10, 518162), (20, 259081), (509, 10180), (1018, 5090), (2036, 2545)]