128809730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{262877}}^1$

素因数の和:262898

約数の個数: 24

約数和(自身を含む): 269712828

約数和(自身を除く): 140903098

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 262877, 525754, 1314385, 1840139, 2628770, 3680278, 9200695, 12880973, 18401390, 25761946, 64404865, 128809730]

約数ペア:

[(1, 128809730), (2, 64404865), (5, 25761946), (7, 18401390), (10, 12880973), (14, 9200695), (35, 3680278), (49, 2628770), (70, 1840139), (98, 1314385), (245, 525754), (490, 262877)]