12500720

素因数分解:

$2^4\times 5^1\times {\mathrm{156259}}^1$

素因数の和:156272

約数の個数: 20

約数和(自身を含む): 29064360

約数和(自身を除く): 16563640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156259, 312518, 625036, 781295, 1250072, 1562590, 2500144, 3125180, 6250360, 12500720]

約数ペア:

[(1, 12500720), (2, 6250360), (4, 3125180), (5, 2500144), (8, 1562590), (10, 1250072), (16, 781295), (20, 625036), (40, 312518), (80, 156259)]