129284560

素因数分解:

$2^4\times 5^1\times {\mathrm{1616057}}^1$

素因数の和:1616070

約数の個数: 20

約数和(自身を含む): 300586788

約数和(自身を除く): 171302228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1616057, 3232114, 6464228, 8080285, 12928456, 16160570, 25856912, 32321140, 64642280, 129284560]

約数ペア:

[(1, 129284560), (2, 64642280), (4, 32321140), (5, 25856912), (8, 16160570), (10, 12928456), (16, 8080285), (20, 6464228), (40, 3232114), (80, 1616057)]