128840270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991079}}^1$

素因数の和:991099

約数の個数: 16

約数和(自身を含む): 249752160

約数和(自身を除く): 120911890

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 991079, 1982158, 4955395, 9910790, 12884027, 25768054, 64420135, 128840270]

約数ペア:

[(1, 128840270), (2, 64420135), (5, 25768054), (10, 12884027), (13, 9910790), (26, 4955395), (65, 1982158), (130, 991079)]