19001780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135727}}^1$

素因数の和:135743

約数の個数: 24

約数和(自身を含む): 45604608

約数和(自身を除く): 26602828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135727, 271454, 542908, 678635, 950089, 1357270, 1900178, 2714540, 3800356, 4750445, 9500890, 19001780]

約数ペア:

[(1, 19001780), (2, 9500890), (4, 4750445), (5, 3800356), (7, 2714540), (10, 1900178), (14, 1357270), (20, 950089), (28, 678635), (35, 542908), (70, 271454), (140, 135727)]