18328660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1471}}^1$

素因数の和:1576

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 26184620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1471, 1780, 2492, 2942, 3115, 5884, 6230, 7355, 10297, 12460, 14710, 20594, 29420, 41188, 51485, 102970, 130919, 205940, 261838, 523676, 654595, 916433, 1309190, 1832866, 2618380, 3665732, 4582165, 9164330, 18328660]

約数ペア:

[(1, 18328660), (2, 9164330), (4, 4582165), (5, 3665732), (7, 2618380), (10, 1832866), (14, 1309190), (20, 916433), (28, 654595), (35, 523676), (70, 261838), (89, 205940), (140, 130919), (178, 102970), (356, 51485), (445, 41188), (623, 29420), (890, 20594), (1246, 14710), (1471, 12460), (1780, 10297), (2492, 7355), (2942, 6230), (3115, 5884)]