20571740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146941}}^1$

素因数の和:146957

約数の個数: 24

約数和(自身を含む): 49372512

約数和(自身を除く): 28800772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146941, 293882, 587764, 734705, 1028587, 1469410, 2057174, 2938820, 4114348, 5142935, 10285870, 20571740]

約数ペア:

[(1, 20571740), (2, 10285870), (4, 5142935), (5, 4114348), (7, 2938820), (10, 2057174), (14, 1469410), (20, 1028587), (28, 734705), (35, 587764), (70, 293882), (140, 146941)]