261635530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{14479}}^1$

素因数の和:14638

約数の個数: 32

約数和(自身を含む): 510854400

約数和(自身を除く): 249218870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1390, 1807, 3614, 9035, 14479, 18070, 28958, 72395, 144790, 188227, 376454, 941135, 1882270, 2012581, 4025162, 10062905, 20125810, 26163553, 52327106, 130817765, 261635530]

約数ペア:

[(1, 261635530), (2, 130817765), (5, 52327106), (10, 26163553), (13, 20125810), (26, 10062905), (65, 4025162), (130, 2012581), (139, 1882270), (278, 941135), (695, 376454), (1390, 188227), (1807, 144790), (3614, 72395), (9035, 28958), (14479, 18070)]