261567385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{733}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 342455040

約数和(自身を除く): 80887655

約数列:

[1, 5, 23, 29, 107, 115, 145, 535, 667, 733, 2461, 3103, 3335, 3665, 12305, 15515, 16859, 21257, 71369, 78431, 84295, 106285, 356845, 392155, 488911, 1803913, 2274499, 2444555, 9019565, 11372495, 52313477, 261567385]

約数ペア:

[(1, 261567385), (5, 52313477), (23, 11372495), (29, 9019565), (107, 2444555), (115, 2274499), (145, 1803913), (535, 488911), (667, 392155), (733, 356845), (2461, 106285), (3103, 84295), (3335, 78431), (3665, 71369), (12305, 21257), (15515, 16859)]