19500740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139291}}^1$

素因数の和:139307

約数の個数: 24

約数和(自身を含む): 46802112

約数和(自身を除く): 27301372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139291, 278582, 557164, 696455, 975037, 1392910, 1950074, 2785820, 3900148, 4875185, 9750370, 19500740]

約数ペア:

[(1, 19500740), (2, 9750370), (4, 4875185), (5, 3900148), (7, 2785820), (10, 1950074), (14, 1392910), (20, 975037), (28, 696455), (35, 557164), (70, 278582), (140, 139291)]