15780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{263}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 44352

約数和(自身を除く): 28572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 263, 526, 789, 1052, 1315, 1578, 2630, 3156, 3945, 5260, 7890, 15780]

約数ペア:

[(1, 15780), (2, 7890), (3, 5260), (4, 3945), (5, 3156), (6, 2630), (10, 1578), (12, 1315), (15, 1052), (20, 789), (30, 526), (60, 263)]