20178032912

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11569973}}^1$

素因数の和:11570090

約数の個数: 20

約数和(自身を含む): 39453611340

約数和(自身を除く): 19275578428

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11569973, 23139946, 46279892, 92559784, 185119568, 1261127057, 2522254114, 5044508228, 10089016456, 20178032912]

約数ペア:

[(1, 20178032912), (2, 10089016456), (4, 5044508228), (8, 2522254114), (16, 1261127057), (109, 185119568), (218, 92559784), (436, 46279892), (872, 23139946), (1744, 11569973)]