19291880

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1571}}^1$

素因数の和:1889

約数の個数: 32

約数和(自身を含む): 43575840

約数和(自身を除く): 24283960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 1571, 2456, 3070, 3142, 6140, 6284, 7855, 12280, 12568, 15710, 31420, 62840, 482297, 964594, 1929188, 2411485, 3858376, 4822970, 9645940, 19291880]

約数ペア:

[(1, 19291880), (2, 9645940), (4, 4822970), (5, 3858376), (8, 2411485), (10, 1929188), (20, 964594), (40, 482297), (307, 62840), (614, 31420), (1228, 15710), (1535, 12568), (1571, 12280), (2456, 7855), (3070, 6284), (3142, 6140)]