27980385

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{613}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 47744640

約数和(自身を除く): 19764255

約数列:

[1, 3, 5, 15, 17, 51, 85, 179, 255, 537, 613, 895, 1839, 2685, 3043, 3065, 9129, 9195, 10421, 15215, 31263, 45645, 52105, 109727, 156315, 329181, 548635, 1645905, 1865359, 5596077, 9326795, 27980385]

約数ペア:

[(1, 27980385), (3, 9326795), (5, 5596077), (15, 1865359), (17, 1645905), (51, 548635), (85, 329181), (179, 156315), (255, 109727), (537, 52105), (613, 45645), (895, 31263), (1839, 15215), (2685, 10421), (3043, 9195), (3065, 9129)]