20572700

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{503}}^1$

素因数の和:926

約数の個数: 36

約数和(自身を含む): 44840880

約数和(自身を除く): 24268180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 503, 818, 1006, 1636, 2012, 2045, 2515, 4090, 5030, 8180, 10060, 10225, 12575, 20450, 25150, 40900, 50300, 205727, 411454, 822908, 1028635, 2057270, 4114540, 5143175, 10286350, 20572700]

約数ペア:

[(1, 20572700), (2, 10286350), (4, 5143175), (5, 4114540), (10, 2057270), (20, 1028635), (25, 822908), (50, 411454), (100, 205727), (409, 50300), (503, 40900), (818, 25150), (1006, 20450), (1636, 12575), (2012, 10225), (2045, 10060), (2515, 8180), (4090, 5030)]