20252140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23549}}^1$

素因数の和:23601

約数の個数: 24

約数和(自身を含む): 43520400

約数和(自身を除く): 23268260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23549, 47098, 94196, 117745, 235490, 470980, 1012607, 2025214, 4050428, 5063035, 10126070, 20252140]

約数ペア:

[(1, 20252140), (2, 10126070), (4, 5063035), (5, 4050428), (10, 2025214), (20, 1012607), (43, 470980), (86, 235490), (172, 117745), (215, 94196), (430, 47098), (860, 23549)]