201620080

素因数分解:

$2^4\times 5^1\times {\mathrm{2520251}}^1$

素因数の和:2520264

約数の個数: 20

約数和(自身を含む): 468766872

約数和(自身を除く): 267146792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520251, 5040502, 10081004, 12601255, 20162008, 25202510, 40324016, 50405020, 100810040, 201620080]

約数ペア:

[(1, 201620080), (2, 100810040), (4, 50405020), (5, 40324016), (8, 25202510), (10, 20162008), (16, 12601255), (20, 10081004), (40, 5040502), (80, 2520251)]