201638380

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{9091}}^1$

素因数の和:10209

約数の個数: 24

約数和(自身を含む): 423869040

約数和(自身を除く): 222230660

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 9091, 11090, 18182, 22180, 36364, 45455, 90910, 181820, 10081919, 20163838, 40327676, 50409595, 100819190, 201638380]

約数ペア:

[(1, 201638380), (2, 100819190), (4, 50409595), (5, 40327676), (10, 20163838), (20, 10081919), (1109, 181820), (2218, 90910), (4436, 45455), (5545, 36364), (9091, 22180), (11090, 18182)]