15787120

素因数分解:

$2^4\times 5^1\times {\mathrm{197339}}^1$

素因数の和:197352

約数の個数: 20

約数和(自身を含む): 36705240

約数和(自身を除く): 20918120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197339, 394678, 789356, 986695, 1578712, 1973390, 3157424, 3946780, 7893560, 15787120]

約数ペア:

[(1, 15787120), (2, 7893560), (4, 3946780), (5, 3157424), (8, 1973390), (10, 1578712), (16, 986695), (20, 789356), (40, 394678), (80, 197339)]