20255725

素因数分解:

$5^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 28877120

約数和(自身を除く): 8621395

約数列:

[1, 5, 7, 25, 35, 175, 283, 409, 1415, 1981, 2045, 2863, 7075, 9905, 10225, 14315, 49525, 71575, 115747, 578735, 810229, 2893675, 4051145, 20255725]

約数ペア:

[(1, 20255725), (5, 4051145), (7, 2893675), (25, 810229), (35, 578735), (175, 115747), (283, 71575), (409, 49525), (1415, 14315), (1981, 10225), (2045, 9905), (2863, 7075)]