25971725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 34971720

約数和(自身を除く): 8999995

約数列:

[1, 5, 13, 25, 65, 157, 325, 509, 785, 2041, 2545, 3925, 6617, 10205, 12725, 33085, 51025, 79913, 165425, 399565, 1038869, 1997825, 5194345, 25971725]

約数ペア:

[(1, 25971725), (5, 5194345), (13, 1997825), (25, 1038869), (65, 399565), (157, 165425), (325, 79913), (509, 51025), (785, 33085), (2041, 12725), (2545, 10205), (3925, 6617)]