869780

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 1844808

約数和(自身を除く): 975028

約数列:

[1, 2, 4, 5, 10, 20, 157, 277, 314, 554, 628, 785, 1108, 1385, 1570, 2770, 3140, 5540, 43489, 86978, 173956, 217445, 434890, 869780]

約数ペア:

[(1, 869780), (2, 434890), (4, 217445), (5, 173956), (10, 86978), (20, 43489), (157, 5540), (277, 3140), (314, 2770), (554, 1570), (628, 1385), (785, 1108)]