20601715

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 25318656

約数和(自身を除く): 4716941

約数列:

[1, 5, 71, 131, 355, 443, 655, 2215, 9301, 31453, 46505, 58033, 157265, 290165, 4120343, 20601715]

約数ペア:

[(1, 20601715), (5, 4120343), (71, 290165), (131, 157265), (355, 58033), (443, 46505), (655, 31453), (2215, 9301)]