1263388225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{417649}}^1$

素因数の和:417681

約数の個数: 18

約数和(自身を含む): 1721970950

約数和(自身を除く): 458582725

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 417649, 2088245, 4594139, 10441225, 22970695, 50535529, 114853475, 252677645, 1263388225]

約数ペア:

[(1, 1263388225), (5, 252677645), (11, 114853475), (25, 50535529), (55, 22970695), (121, 10441225), (275, 4594139), (605, 2088245), (3025, 417649)]