139071280

素因数分解:

$2^4\times 5^1\times {\mathrm{1738391}}^1$

素因数の和:1738404

約数の個数: 20

約数和(自身を含む): 323340912

約数和(自身を除く): 184269632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1738391, 3476782, 6953564, 8691955, 13907128, 17383910, 27814256, 34767820, 69535640, 139071280]

約数ペア:

[(1, 139071280), (2, 69535640), (4, 34767820), (5, 27814256), (8, 17383910), (10, 13907128), (16, 8691955), (20, 6953564), (40, 3476782), (80, 1738391)]