1390256

素因数分解:

$2^4\times 7^1\times {\mathrm{12413}}^1$

素因数の和:12428

約数の個数: 20

約数和(自身を含む): 3078672

約数和(自身を除く): 1688416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 12413, 24826, 49652, 86891, 99304, 173782, 198608, 347564, 695128, 1390256]

約数ペア:

[(1, 1390256), (2, 695128), (4, 347564), (7, 198608), (8, 173782), (14, 99304), (16, 86891), (28, 49652), (56, 24826), (112, 12413)]