219625880

素因数分解:

$2^3\times 5^1\times {\mathrm{5490647}}^1$

素因数の和:5490658

約数の個数: 16

約数和(自身を含む): 494158320

約数和(自身を除く): 274532440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5490647, 10981294, 21962588, 27453235, 43925176, 54906470, 109812940, 219625880]

約数ペア:

[(1, 219625880), (2, 109812940), (4, 54906470), (5, 43925176), (8, 27453235), (10, 21962588), (20, 10981294), (40, 5490647)]