208565140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1489751}}^1$

素因数の和:1489767

約数の個数: 24

約数和(自身を含む): 500556672

約数和(自身を除く): 291991532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1489751, 2979502, 5959004, 7448755, 10428257, 14897510, 20856514, 29795020, 41713028, 52141285, 104282570, 208565140]

約数ペア:

[(1, 208565140), (2, 104282570), (4, 52141285), (5, 41713028), (7, 29795020), (10, 20856514), (14, 14897510), (20, 10428257), (28, 7448755), (35, 5959004), (70, 2979502), (140, 1489751)]