81864405

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{86629}}^1$

素因数の和:86650

約数の個数: 32

約数和(自身を含む): 166329600

約数和(自身を除く): 84465195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 86629, 259887, 433145, 606403, 779661, 1299435, 1819209, 2338983, 3032015, 3898305, 5457627, 9096045, 11694915, 16372881, 27288135, 81864405]

約数ペア:

[(1, 81864405), (3, 27288135), (5, 16372881), (7, 11694915), (9, 9096045), (15, 5457627), (21, 3898305), (27, 3032015), (35, 2338983), (45, 1819209), (63, 1299435), (105, 779661), (135, 606403), (189, 433145), (315, 259887), (945, 86629)]