7424380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 16299360

約数和(自身を除く): 8874980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 97, 172, 178, 194, 215, 356, 388, 430, 445, 485, 860, 890, 970, 1780, 1940, 3827, 4171, 7654, 8342, 8633, 15308, 16684, 17266, 19135, 20855, 34532, 38270, 41710, 43165, 76540, 83420, 86330, 172660, 371219, 742438, 1484876, 1856095, 3712190, 7424380]

約数ペア:

[(1, 7424380), (2, 3712190), (4, 1856095), (5, 1484876), (10, 742438), (20, 371219), (43, 172660), (86, 86330), (89, 83420), (97, 76540), (172, 43165), (178, 41710), (194, 38270), (215, 34532), (356, 20855), (388, 19135), (430, 17266), (445, 16684), (485, 15308), (860, 8633), (890, 8342), (970, 7654), (1780, 4171), (1940, 3827)]