261230645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{129643}}^1$

素因数の和:129692

約数の個数: 16

約数和(自身を含む): 348483072

約数和(自身を除く): 87252427

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 129643, 648215, 1685359, 4018933, 8426795, 20094665, 52246129, 261230645]

約数ペア:

[(1, 261230645), (5, 52246129), (13, 20094665), (31, 8426795), (65, 4018933), (155, 1685359), (403, 648215), (2015, 129643)]