221036620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1578833}}^1$

素因数の和:1578849

約数の個数: 24

約数和(自身を含む): 530488224

約数和(自身を除く): 309451604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1578833, 3157666, 6315332, 7894165, 11051831, 15788330, 22103662, 31576660, 44207324, 55259155, 110518310, 221036620]

約数ペア:

[(1, 221036620), (2, 110518310), (4, 55259155), (5, 44207324), (7, 31576660), (10, 22103662), (14, 15788330), (20, 11051831), (28, 7894165), (35, 6315332), (70, 3157666), (140, 1578833)]