128430425

素因数分解:

$5^2\times {\mathrm{97}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 162302112

約数和(自身を除く): 33871687

約数列:

[1, 5, 25, 97, 211, 251, 485, 1055, 1255, 2425, 5275, 6275, 20467, 24347, 52961, 102335, 121735, 264805, 511675, 608675, 1324025, 5137217, 25686085, 128430425]

約数ペア:

[(1, 128430425), (5, 25686085), (25, 5137217), (97, 1324025), (211, 608675), (251, 511675), (485, 264805), (1055, 121735), (1255, 102335), (2425, 52961), (5275, 24347), (6275, 20467)]