81368455

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{22571}}^1$

素因数の和:22686

約数の個数: 16

約数和(自身を含む): 112679424

約数和(自身を除く): 31310969

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 22571, 112855, 157997, 789985, 2324813, 11624065, 16273691, 81368455]

約数ペア:

[(1, 81368455), (5, 16273691), (7, 11624065), (35, 2324813), (103, 789985), (515, 157997), (721, 112855), (3605, 22571)]