19517260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139409}}^1$

素因数の和:139425

約数の個数: 24

約数和(自身を含む): 46841760

約数和(自身を除く): 27324500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139409, 278818, 557636, 697045, 975863, 1394090, 1951726, 2788180, 3903452, 4879315, 9758630, 19517260]

約数ペア:

[(1, 19517260), (2, 9758630), (4, 4879315), (5, 3903452), (7, 2788180), (10, 1951726), (14, 1394090), (20, 975863), (28, 697045), (35, 557636), (70, 278818), (140, 139409)]