20187415865

素因数分解:

$5^1\times {\mathrm{409}}^1\times {\mathrm{2099}}^1\times {\mathrm{4703}}^1$

素因数の和:7216

約数の個数: 16

約数和(自身を含む): 24300864000

約数和(自身を除く): 4113448135

約数列:

[1, 5, 409, 2045, 2099, 4703, 10495, 23515, 858491, 1923527, 4292455, 9617635, 9871597, 49357985, 4037483173, 20187415865]

約数ペア:

[(1, 20187415865), (5, 4037483173), (409, 49357985), (2045, 9871597), (2099, 9617635), (4703, 4292455), (10495, 1923527), (23515, 858491)]