20627080

素因数分解:

$2^3\times 5^1\times {\mathrm{515677}}^1$

素因数の和:515688

約数の個数: 16

約数和(自身を含む): 46411020

約数和(自身を除く): 25783940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 515677, 1031354, 2062708, 2578385, 4125416, 5156770, 10313540, 20627080]

約数ペア:

[(1, 20627080), (2, 10313540), (4, 5156770), (5, 4125416), (8, 2578385), (10, 2062708), (20, 1031354), (40, 515677)]