19895080

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1409}}^1$

素因数の和:1773

約数の個数: 32

約数和(自身を含む): 44922600

約数和(自身を除く): 25027520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1409, 1412, 1765, 2818, 2824, 3530, 5636, 7045, 7060, 11272, 14090, 14120, 28180, 56360, 497377, 994754, 1989508, 2486885, 3979016, 4973770, 9947540, 19895080]

約数ペア:

[(1, 19895080), (2, 9947540), (4, 4973770), (5, 3979016), (8, 2486885), (10, 1989508), (20, 994754), (40, 497377), (353, 56360), (706, 28180), (1409, 14120), (1412, 14090), (1765, 11272), (2818, 7060), (2824, 7045), (3530, 5636)]