39720345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{378289}}^1$

素因数の和:378304

約数の個数: 16

約数和(自身を含む): 72631680

約数和(自身を除く): 32911335

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 378289, 1134867, 1891445, 2648023, 5674335, 7944069, 13240115, 39720345]

約数ペア:

[(1, 39720345), (3, 13240115), (5, 7944069), (7, 5674335), (15, 2648023), (21, 1891445), (35, 1134867), (105, 378289)]