7681240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{3919}}^1$

素因数の和:3944

約数の個数: 48

約数和(自身を含む): 20109600

約数和(自身を除く): 12428360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 3919, 7838, 15676, 19595, 27433, 31352, 39190, 54866, 78380, 109732, 137165, 156760, 192031, 219464, 274330, 384062, 548660, 768124, 960155, 1097320, 1536248, 1920310, 3840620, 7681240]

約数ペア:

[(1, 7681240), (2, 3840620), (4, 1920310), (5, 1536248), (7, 1097320), (8, 960155), (10, 768124), (14, 548660), (20, 384062), (28, 274330), (35, 219464), (40, 192031), (49, 156760), (56, 137165), (70, 109732), (98, 78380), (140, 54866), (196, 39190), (245, 31352), (280, 27433), (392, 19595), (490, 15676), (980, 7838), (1960, 3919)]