16690040

素因数分解:

$2^3\times 5^1\times {\mathrm{417251}}^1$

素因数の和:417262

約数の個数: 16

約数和(自身を含む): 37552680

約数和(自身を除く): 20862640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 417251, 834502, 1669004, 2086255, 3338008, 4172510, 8345020, 16690040]

約数ペア:

[(1, 16690040), (2, 8345020), (4, 4172510), (5, 3338008), (8, 2086255), (10, 1669004), (20, 834502), (40, 417251)]