2000500

素因数分解:

$2^2\times 5^3\times {\mathrm{4001}}^1$

素因数の和:4020

約数の個数: 24

約数和(自身を含む): 4370184

約数和(自身を除く): 2369684

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 4001, 8002, 16004, 20005, 40010, 80020, 100025, 200050, 400100, 500125, 1000250, 2000500]

約数ペア:

[(1, 2000500), (2, 1000250), (4, 500125), (5, 400100), (10, 200050), (20, 100025), (25, 80020), (50, 40010), (100, 20005), (125, 16004), (250, 8002), (500, 4001)]