12511940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89371}}^1$

素因数の和:89387

約数の個数: 24

約数和(自身を含む): 30028992

約数和(自身を除く): 17517052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 89371, 178742, 357484, 446855, 625597, 893710, 1251194, 1787420, 2502388, 3127985, 6255970, 12511940]

約数ペア:

[(1, 12511940), (2, 6255970), (4, 3127985), (5, 2502388), (7, 1787420), (10, 1251194), (14, 893710), (20, 625597), (28, 446855), (35, 357484), (70, 178742), (140, 89371)]