313616840

素因数分解:

$2^3\times 5^1\times {\mathrm{7840421}}^1$

素因数の和:7840432

約数の個数: 16

約数和(自身を含む): 705637980

約数和(自身を除く): 392021140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7840421, 15680842, 31361684, 39202105, 62723368, 78404210, 156808420, 313616840]

約数ペア:

[(1, 313616840), (2, 156808420), (4, 78404210), (5, 62723368), (8, 39202105), (10, 31361684), (20, 15680842), (40, 7840421)]