39400820

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2851}}^1$

素因数の和:3551

約数の個数: 24

約数和(自身を含む): 82890528

約数和(自身を除く): 43489708

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 2851, 3455, 5702, 6910, 11404, 13820, 14255, 28510, 57020, 1970041, 3940082, 7880164, 9850205, 19700410, 39400820]

約数ペア:

[(1, 39400820), (2, 19700410), (4, 9850205), (5, 7880164), (10, 3940082), (20, 1970041), (691, 57020), (1382, 28510), (2764, 14255), (2851, 13820), (3455, 11404), (5702, 6910)]