19486360

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1811}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 44031600

約数和(自身を除く): 24545240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 1811, 2152, 2690, 3622, 5380, 7244, 9055, 10760, 14488, 18110, 36220, 72440, 487159, 974318, 1948636, 2435795, 3897272, 4871590, 9743180, 19486360]

約数ペア:

[(1, 19486360), (2, 9743180), (4, 4871590), (5, 3897272), (8, 2435795), (10, 1948636), (20, 974318), (40, 487159), (269, 72440), (538, 36220), (1076, 18110), (1345, 14488), (1811, 10760), (2152, 9055), (2690, 7244), (3622, 5380)]