28278735

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 49040640

約数和(自身を除く): 20761905

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 2193, 2579, 3655, 7737, 10965, 12895, 38685, 43843, 110897, 131529, 219215, 332691, 554485, 657645, 1663455, 1885249, 5655747, 9426245, 28278735]

約数ペア:

[(1, 28278735), (3, 9426245), (5, 5655747), (15, 1885249), (17, 1663455), (43, 657645), (51, 554485), (85, 332691), (129, 219215), (215, 131529), (255, 110897), (645, 43843), (731, 38685), (2193, 12895), (2579, 10965), (3655, 7737)]