256419905

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{120103}}^1$

素因数の和:120176

約数の個数: 16

約数和(自身を含む): 357429504

約数和(自身を除く): 101009599

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 120103, 600515, 840721, 4203605, 7326283, 36631415, 51283981, 256419905]

約数ペア:

[(1, 256419905), (5, 51283981), (7, 36631415), (35, 7326283), (61, 4203605), (305, 840721), (427, 600515), (2135, 120103)]