19609490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{389}}^1$

素因数の和:538

約数の個数: 24

約数和(自身を含む): 35893260

約数和(自身を除く): 16283770

約数列:

[1, 2, 5, 10, 71, 142, 355, 389, 710, 778, 1945, 3890, 5041, 10082, 25205, 27619, 50410, 55238, 138095, 276190, 1960949, 3921898, 9804745, 19609490]

約数ペア:

[(1, 19609490), (2, 9804745), (5, 3921898), (10, 1960949), (71, 276190), (142, 138095), (355, 55238), (389, 50410), (710, 27619), (778, 25205), (1945, 10082), (3890, 5041)]