131428225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1021}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 172350080

約数和(自身を除く): 40921855

約数列:

[1, 5, 19, 25, 95, 271, 475, 1021, 1355, 5105, 5149, 6775, 19399, 25525, 25745, 96995, 128725, 276691, 484975, 1383455, 5257129, 6917275, 26285645, 131428225]

約数ペア:

[(1, 131428225), (5, 26285645), (19, 6917275), (25, 5257129), (95, 1383455), (271, 484975), (475, 276691), (1021, 128725), (1355, 96995), (5105, 25745), (5149, 25525), (6775, 19399)]