18318025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1129}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 25221600

約数和(自身を除く): 6903575

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1129, 1475, 3245, 5645, 12419, 16225, 28225, 62095, 66611, 310475, 333055, 732721, 1665275, 3663605, 18318025]

約数ペア:

[(1, 18318025), (5, 3663605), (11, 1665275), (25, 732721), (55, 333055), (59, 310475), (275, 66611), (295, 62095), (649, 28225), (1129, 16225), (1475, 12419), (3245, 5645)]