20047580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143197}}^1$

素因数の和:143213

約数の個数: 24

約数和(自身を含む): 48114528

約数和(自身を除く): 28066948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143197, 286394, 572788, 715985, 1002379, 1431970, 2004758, 2863940, 4009516, 5011895, 10023790, 20047580]

約数ペア:

[(1, 20047580), (2, 10023790), (4, 5011895), (5, 4009516), (7, 2863940), (10, 2004758), (14, 1431970), (20, 1002379), (28, 715985), (35, 572788), (70, 286394), (140, 143197)]