1605040

素因数分解:

$2^4\times 5^1\times {\mathrm{20063}}^1$

素因数の和:20076

約数の個数: 20

約数和(自身を含む): 3731904

約数和(自身を除く): 2126864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20063, 40126, 80252, 100315, 160504, 200630, 321008, 401260, 802520, 1605040]

約数ペア:

[(1, 1605040), (2, 802520), (4, 401260), (5, 321008), (8, 200630), (10, 160504), (16, 100315), (20, 80252), (40, 40126), (80, 20063)]