202080640

素因数分解:

$2^7\times 5^1\times {\mathrm{315751}}^1$

素因数の和:315770

約数の個数: 32

約数和(自身を含む): 483100560

約数和(自身を除く): 281019920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 315751, 631502, 1263004, 1578755, 2526008, 3157510, 5052016, 6315020, 10104032, 12630040, 20208064, 25260080, 40416128, 50520160, 101040320, 202080640]

約数ペア:

[(1, 202080640), (2, 101040320), (4, 50520160), (5, 40416128), (8, 25260080), (10, 20208064), (16, 12630040), (20, 10104032), (32, 6315020), (40, 5052016), (64, 3157510), (80, 2526008), (128, 1578755), (160, 1263004), (320, 631502), (640, 315751)]