19956580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142547}}^1$

素因数の和:142563

約数の個数: 24

約数和(自身を含む): 47896128

約数和(自身を除く): 27939548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142547, 285094, 570188, 712735, 997829, 1425470, 1995658, 2850940, 3991316, 4989145, 9978290, 19956580]

約数ペア:

[(1, 19956580), (2, 9978290), (4, 4989145), (5, 3991316), (7, 2850940), (10, 1995658), (14, 1425470), (20, 997829), (28, 712735), (35, 570188), (70, 285094), (140, 142547)]