121511225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{40169}}^1$

素因数の和:40201

約数の個数: 18

約数和(自身を含む): 165620910

約数和(自身を除く): 44109685

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 40169, 200845, 441859, 1004225, 2209295, 4860449, 11046475, 24302245, 121511225]

約数ペア:

[(1, 121511225), (5, 24302245), (11, 11046475), (25, 4860449), (55, 2209295), (121, 1004225), (275, 441859), (605, 200845), (3025, 40169)]