78465475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{25939}}^1$

素因数の和:25971

約数の個数: 18

約数和(自身を含む): 106950620

約数和(自身を除く): 28485145

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 25939, 129695, 285329, 648475, 1426645, 3138619, 7133225, 15693095, 78465475]

約数ペア:

[(1, 78465475), (5, 15693095), (11, 7133225), (25, 3138619), (55, 1426645), (121, 648475), (275, 285329), (605, 129695), (3025, 25939)]