81212005

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{49369}}^1$

素因数の和:49428

約数の個数: 16

約数和(自身を含む): 113748480

約数和(自身を除く): 32536475

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 49369, 246845, 345583, 1727915, 2320343, 11601715, 16242401, 81212005]

約数ペア:

[(1, 81212005), (5, 16242401), (7, 11601715), (35, 2320343), (47, 1727915), (235, 345583), (329, 246845), (1645, 49369)]