31105125

素因数分解:

$3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 57465408

約数和(自身を除く): 26360283

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 375, 387, 643, 645, 1075, 1125, 1929, 1935, 3215, 3225, 5375, 5787, 9645, 9675, 16075, 16125, 27649, 28935, 48225, 48375, 80375, 82947, 138245, 144675, 241125, 248841, 414735, 691225, 723375, 1244205, 2073675, 3456125, 6221025, 10368375, 31105125]

約数ペア:

[(1, 31105125), (3, 10368375), (5, 6221025), (9, 3456125), (15, 2073675), (25, 1244205), (43, 723375), (45, 691225), (75, 414735), (125, 248841), (129, 241125), (215, 144675), (225, 138245), (375, 82947), (387, 80375), (643, 48375), (645, 48225), (1075, 28935), (1125, 27649), (1929, 16125), (1935, 16075), (3215, 9675), (3225, 9645), (5375, 5787)]