28125140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82721}}^1$

素因数の和:82747

約数の個数: 24

約数和(自身を含む): 62537832

約数和(自身を除く): 34412692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82721, 165442, 330884, 413605, 827210, 1406257, 1654420, 2812514, 5625028, 7031285, 14062570, 28125140]

約数ペア:

[(1, 28125140), (2, 14062570), (4, 7031285), (5, 5625028), (10, 2812514), (17, 1654420), (20, 1406257), (34, 827210), (68, 413605), (85, 330884), (170, 165442), (340, 82721)]