20263205

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 24845184

約数和(自身を除く): 4581979

約数列:

[1, 5, 83, 157, 311, 415, 785, 1555, 13031, 25813, 48827, 65155, 129065, 244135, 4052641, 20263205]

約数ペア:

[(1, 20263205), (5, 4052641), (83, 244135), (157, 129065), (311, 65155), (415, 48827), (785, 25813), (1555, 13031)]