81363890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{428231}}^1$

素因数の和:428257

約数の個数: 16

約数和(自身を含む): 154163520

約数和(自身を除く): 72799630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 428231, 856462, 2141155, 4282310, 8136389, 16272778, 40681945, 81363890]

約数ペア:

[(1, 81363890), (2, 40681945), (5, 16272778), (10, 8136389), (19, 4282310), (38, 2141155), (95, 856462), (190, 428231)]