81326490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{387269}}^1$

素因数の和:387286

約数の個数: 32

約数和(自身を含む): 223067520

約数和(自身を除く): 141741030

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 387269, 774538, 1161807, 1936345, 2323614, 2710883, 3872690, 5421766, 5809035, 8132649, 11618070, 13554415, 16265298, 27108830, 40663245, 81326490]

約数ペア:

[(1, 81326490), (2, 40663245), (3, 27108830), (5, 16265298), (6, 13554415), (7, 11618070), (10, 8132649), (14, 5809035), (15, 5421766), (21, 3872690), (30, 2710883), (35, 2323614), (42, 1936345), (70, 1161807), (105, 774538), (210, 387269)]