20180887916

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5185223}}^1$

素因数の和:5185373

約数の個数: 24

約数和(自身を含む): 40652156160

約数和(自身を除く): 20471268244

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5185223, 10370446, 20740892, 36296561, 72593122, 145186244, 720745997, 1441491994, 2882983988, 5045221979, 10090443958, 20180887916]

約数ペア:

[(1, 20180887916), (2, 10090443958), (4, 5045221979), (7, 2882983988), (14, 1441491994), (28, 720745997), (139, 145186244), (278, 72593122), (556, 36296561), (973, 20740892), (1946, 10370446), (3892, 5185223)]