121390225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{40129}}^1$

素因数の和:40161

約数の個数: 18

約数和(自身を含む): 165455990

約数和(自身を除く): 44065765

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 40129, 200645, 441419, 1003225, 2207095, 4855609, 11035475, 24278045, 121390225]

約数ペア:

[(1, 121390225), (5, 24278045), (11, 11035475), (25, 4855609), (55, 2207095), (121, 1003225), (275, 441419), (605, 200645), (3025, 40129)]