428689840

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{12433}}^1$

素因数の和:12877

約数の個数: 40

約数和(自身を含む): 999096768

約数和(自身を除く): 570406928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 3448, 4310, 6896, 8620, 12433, 17240, 24866, 34480, 49732, 62165, 99464, 124330, 198928, 248660, 497320, 994640, 5358623, 10717246, 21434492, 26793115, 42868984, 53586230, 85737968, 107172460, 214344920, 428689840]

約数ペア:

[(1, 428689840), (2, 214344920), (4, 107172460), (5, 85737968), (8, 53586230), (10, 42868984), (16, 26793115), (20, 21434492), (40, 10717246), (80, 5358623), (431, 994640), (862, 497320), (1724, 248660), (2155, 198928), (3448, 124330), (4310, 99464), (6896, 62165), (8620, 49732), (12433, 34480), (17240, 24866)]