72457480

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2099}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 163296000

約数和(自身を除く): 90838520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 2099, 3452, 4198, 4315, 6904, 8396, 8630, 10495, 16792, 17260, 20990, 34520, 41980, 83960, 1811437, 3622874, 7245748, 9057185, 14491496, 18114370, 36228740, 72457480]

約数ペア:

[(1, 72457480), (2, 36228740), (4, 18114370), (5, 14491496), (8, 9057185), (10, 7245748), (20, 3622874), (40, 1811437), (863, 83960), (1726, 41980), (2099, 34520), (3452, 20990), (4198, 17260), (4315, 16792), (6904, 10495), (8396, 8630)]