18129175

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 24060960

約数和(自身を除く): 5931785

約数列:

[1, 5, 23, 25, 41, 115, 205, 575, 769, 943, 1025, 3845, 4715, 17687, 19225, 23575, 31529, 88435, 157645, 442175, 725167, 788225, 3625835, 18129175]

約数ペア:

[(1, 18129175), (5, 3625835), (23, 788225), (25, 725167), (41, 442175), (115, 157645), (205, 88435), (575, 31529), (769, 23575), (943, 19225), (1025, 17687), (3845, 4715)]