19638020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51679}}^1$

素因数の和:51707

約数の個数: 24

約数和(自身を含む): 43411200

約数和(自身を除く): 23773180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51679, 103358, 206716, 258395, 516790, 981901, 1033580, 1963802, 3927604, 4909505, 9819010, 19638020]

約数ペア:

[(1, 19638020), (2, 9819010), (4, 4909505), (5, 3927604), (10, 1963802), (19, 1033580), (20, 981901), (38, 516790), (76, 258395), (95, 206716), (190, 103358), (380, 51679)]