7774620380

素因数分解:

$2^2\times 5^1\times {\mathrm{388731019}}^1$

素因数の和:388731028

約数の個数: 12

約数和(自身を含む): 16326702840

約数和(自身を除く): 8552082460

約数列:

[1, 2, 4, 5, 10, 20, 388731019, 777462038, 1554924076, 1943655095, 3887310190, 7774620380]

約数ペア:

[(1, 7774620380), (2, 3887310190), (4, 1943655095), (5, 1554924076), (10, 777462038), (20, 388731019)]