68980405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{14947}}^1$

素因数の和:15036

約数の個数: 16

約数和(自身を含む): 90405504

約数和(自身を除く): 21425099

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 14947, 74735, 194311, 971555, 1061237, 5306185, 13796081, 68980405]

約数ペア:

[(1, 68980405), (5, 13796081), (13, 5306185), (65, 1061237), (71, 971555), (355, 194311), (923, 74735), (4615, 14947)]