81658505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{8081}}^1$

素因数の和:8176

約数の個数: 16

約数和(自身を含む): 102415104

約数和(自身を除く): 20756599

約数列:

[1, 5, 43, 47, 215, 235, 2021, 8081, 10105, 40405, 347483, 379807, 1737415, 1899035, 16331701, 81658505]

約数ペア:

[(1, 81658505), (5, 16331701), (43, 1899035), (47, 1737415), (215, 379807), (235, 347483), (2021, 40405), (8081, 10105)]