81477080

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{2833}}^1$

素因数の和:3563

約数の個数: 32

約数和(自身を含む): 183643200

約数和(自身を除く): 102166120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2833, 2876, 3595, 5666, 5752, 7190, 11332, 14165, 14380, 22664, 28330, 28760, 56660, 113320, 2036927, 4073854, 8147708, 10184635, 16295416, 20369270, 40738540, 81477080]

約数ペア:

[(1, 81477080), (2, 40738540), (4, 20369270), (5, 16295416), (8, 10184635), (10, 8147708), (20, 4073854), (40, 2036927), (719, 113320), (1438, 56660), (2833, 28760), (2876, 28330), (3595, 22664), (5666, 14380), (5752, 14165), (7190, 11332)]