87819985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{379}}^1\times {\mathrm{383}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 116444160

約数和(自身を除く): 28624175

約数列:

[1, 5, 11, 55, 121, 379, 383, 605, 1895, 1915, 4169, 4213, 20845, 21065, 45859, 46343, 145157, 229295, 231715, 725785, 1596727, 7983635, 17563997, 87819985]

約数ペア:

[(1, 87819985), (5, 17563997), (11, 7983635), (55, 1596727), (121, 725785), (379, 231715), (383, 229295), (605, 145157), (1895, 46343), (1915, 45859), (4169, 21065), (4213, 20845)]