25328540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17837}}^1$

素因数の和:17917

約数の個数: 24

約数和(自身を含む): 53942112

約数和(自身を除く): 28613572

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17837, 35674, 71348, 89185, 178370, 356740, 1266427, 2532854, 5065708, 6332135, 12664270, 25328540]

約数ペア:

[(1, 25328540), (2, 12664270), (4, 6332135), (5, 5065708), (10, 2532854), (20, 1266427), (71, 356740), (142, 178370), (284, 89185), (355, 71348), (710, 35674), (1420, 17837)]