15284440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2749}}^1$

素因数の和:2899

約数の個数: 32

約数和(自身を含む): 34650000

約数和(自身を除く): 19365560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2749, 2780, 5498, 5560, 10996, 13745, 21992, 27490, 54980, 109960, 382111, 764222, 1528444, 1910555, 3056888, 3821110, 7642220, 15284440]

約数ペア:

[(1, 15284440), (2, 7642220), (4, 3821110), (5, 3056888), (8, 1910555), (10, 1528444), (20, 764222), (40, 382111), (139, 109960), (278, 54980), (556, 27490), (695, 21992), (1112, 13745), (1390, 10996), (2749, 5560), (2780, 5498)]