20736156944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{983}}^1\times {\mathrm{30661}}^1$

素因数の和:31695

約数の個数: 40

約数和(自身を含む): 41153800512

約数和(自身を除く): 20417643568

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 983, 1966, 3932, 7864, 15728, 30661, 42269, 61322, 84538, 122644, 169076, 245288, 338152, 490576, 676304, 1318423, 2636846, 5273692, 10547384, 21094768, 30139763, 60279526, 120559052, 241118104, 482236208, 1296009809, 2592019618, 5184039236, 10368078472, 20736156944]

約数ペア:

[(1, 20736156944), (2, 10368078472), (4, 5184039236), (8, 2592019618), (16, 1296009809), (43, 482236208), (86, 241118104), (172, 120559052), (344, 60279526), (688, 30139763), (983, 21094768), (1966, 10547384), (3932, 5273692), (7864, 2636846), (15728, 1318423), (30661, 676304), (42269, 490576), (61322, 338152), (84538, 245288), (122644, 169076)]