169691875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{15971}}^1$

素因数の和:16008

約数の個数: 20

約数和(自身を含む): 224534376

約数和(自身を除く): 54842501

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 10625, 15971, 79855, 271507, 399275, 1357535, 1996375, 6787675, 9981875, 33938375, 169691875]

約数ペア:

[(1, 169691875), (5, 33938375), (17, 9981875), (25, 6787675), (85, 1996375), (125, 1357535), (425, 399275), (625, 271507), (2125, 79855), (10625, 15971)]