15789520

素因数分解:

$2^4\times 5^1\times {\mathrm{197369}}^1$

素因数の和:197382

約数の個数: 20

約数和(自身を含む): 36710820

約数和(自身を除く): 20921300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197369, 394738, 789476, 986845, 1578952, 1973690, 3157904, 3947380, 7894760, 15789520]

約数ペア:

[(1, 15789520), (2, 7894760), (4, 3947380), (5, 3157904), (8, 1973690), (10, 1578952), (16, 986845), (20, 789476), (40, 394738), (80, 197369)]