79881025

素因数分解:

$5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1154

約数の個数: 36

約数和(自身を含む): 117222780

約数和(自身を除く): 37341755

約数列:

[1, 5, 7, 25, 35, 49, 61, 175, 245, 305, 427, 1069, 1225, 1525, 2135, 2989, 5345, 7483, 10675, 14945, 26725, 37415, 52381, 65209, 74725, 187075, 261905, 326045, 456463, 1309525, 1630225, 2282315, 3195241, 11411575, 15976205, 79881025]

約数ペア:

[(1, 79881025), (5, 15976205), (7, 11411575), (25, 3195241), (35, 2282315), (49, 1630225), (61, 1309525), (175, 456463), (245, 326045), (305, 261905), (427, 187075), (1069, 74725), (1225, 65209), (1525, 52381), (2135, 37415), (2989, 26725), (5345, 14945), (7483, 10675)]