81252395

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{74887}}^1$

素因数の和:74930

約数の個数: 16

約数和(自身を含む): 115027968

約数和(自身を除く): 33775573

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 74887, 374435, 524209, 2321497, 2621045, 11607485, 16250479, 81252395]

約数ペア:

[(1, 81252395), (5, 16250479), (7, 11607485), (31, 2621045), (35, 2321497), (155, 524209), (217, 374435), (1085, 74887)]