19379780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138427}}^1$

素因数の和:138443

約数の個数: 24

約数和(自身を含む): 46511808

約数和(自身を除く): 27132028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138427, 276854, 553708, 692135, 968989, 1384270, 1937978, 2768540, 3875956, 4844945, 9689890, 19379780]

約数ペア:

[(1, 19379780), (2, 9689890), (4, 4844945), (5, 3875956), (7, 2768540), (10, 1937978), (14, 1384270), (20, 968989), (28, 692135), (35, 553708), (70, 276854), (140, 138427)]