256272025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4603}}^1$

素因数の和:4761

約数の個数: 24

約数和(自身を含む): 339112224

約数和(自身を除く): 82840199

約数列:

[1, 5, 17, 25, 85, 131, 425, 655, 2227, 3275, 4603, 11135, 23015, 55675, 78251, 115075, 391255, 602993, 1956275, 3014965, 10250881, 15074825, 51254405, 256272025]

約数ペア:

[(1, 256272025), (5, 51254405), (17, 15074825), (25, 10250881), (85, 3014965), (131, 1956275), (425, 602993), (655, 391255), (2227, 115075), (3275, 78251), (4603, 55675), (11135, 23015)]