10905020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{77893}}^1$

素因数の和:77909

約数の個数: 24

約数和(自身を含む): 26172384

約数和(自身を除く): 15267364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 77893, 155786, 311572, 389465, 545251, 778930, 1090502, 1557860, 2181004, 2726255, 5452510, 10905020]

約数ペア:

[(1, 10905020), (2, 5452510), (4, 2726255), (5, 2181004), (7, 1557860), (10, 1090502), (14, 778930), (20, 545251), (28, 389465), (35, 311572), (70, 155786), (140, 77893)]