19768550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20809}}^1$

素因数の和:20840

約数の個数: 24

約数和(自身を含む): 38706600

約数和(自身を除く): 18938050

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 20809, 41618, 104045, 208090, 395371, 520225, 790742, 1040450, 1976855, 3953710, 9884275, 19768550]

約数ペア:

[(1, 19768550), (2, 9884275), (5, 3953710), (10, 1976855), (19, 1040450), (25, 790742), (38, 520225), (50, 395371), (95, 208090), (190, 104045), (475, 41618), (950, 20809)]