227780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1627}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 547008

約数和(自身を除く): 319228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1627, 3254, 6508, 8135, 11389, 16270, 22778, 32540, 45556, 56945, 113890, 227780]

約数ペア:

[(1, 227780), (2, 113890), (4, 56945), (5, 45556), (7, 32540), (10, 22778), (14, 16270), (20, 11389), (28, 8135), (35, 6508), (70, 3254), (140, 1627)]