27888980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199207}}^1$

素因数の和:199223

約数の個数: 24

約数和(自身を含む): 66933888

約数和(自身を除く): 39044908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199207, 398414, 796828, 996035, 1394449, 1992070, 2788898, 3984140, 5577796, 6972245, 13944490, 27888980]

約数ペア:

[(1, 27888980), (2, 13944490), (4, 6972245), (5, 5577796), (7, 3984140), (10, 2788898), (14, 1992070), (20, 1394449), (28, 996035), (35, 796828), (70, 398414), (140, 199207)]