19493480

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1567}}^1$

素因数の和:1889

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 24535960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 1567, 2488, 3110, 3134, 6220, 6268, 7835, 12440, 12536, 15670, 31340, 62680, 487337, 974674, 1949348, 2436685, 3898696, 4873370, 9746740, 19493480]

約数ペア:

[(1, 19493480), (2, 9746740), (4, 4873370), (5, 3898696), (8, 2436685), (10, 1949348), (20, 974674), (40, 487337), (311, 62680), (622, 31340), (1244, 15670), (1555, 12536), (1567, 12440), (2488, 7835), (3110, 6268), (3134, 6220)]