256446

素因数分解:

$2^1\times 3^4\times {\mathrm{1583}}^1$

素因数の和:1597

約数の個数: 20

約数和(自身を含む): 574992

約数和(自身を除く): 318546

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 1583, 3166, 4749, 9498, 14247, 28494, 42741, 85482, 128223, 256446]

約数ペア:

[(1, 256446), (2, 128223), (3, 85482), (6, 42741), (9, 28494), (18, 14247), (27, 9498), (54, 4749), (81, 3166), (162, 1583)]