1500000020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1119403}}^1$

素因数の和:1119479

約数の個数: 24

約数和(自身を含む): 3197017824

約数和(自身を除く): 1697017804

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 1119403, 2238806, 4477612, 5597015, 11194030, 22388060, 75000001, 150000002, 300000004, 375000005, 750000010, 1500000020]

約数ペア:

[(1, 1500000020), (2, 750000010), (4, 375000005), (5, 300000004), (10, 150000002), (20, 75000001), (67, 22388060), (134, 11194030), (268, 5597015), (335, 4477612), (670, 2238806), (1340, 1119403)]