20682256

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3929}}^1$

素因数の和:3991

約数の個数: 40

約数和(自身を含む): 46782720

約数和(自身を除く): 26100464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 3929, 5264, 7858, 15716, 27503, 31432, 55006, 62864, 110012, 184663, 220024, 369326, 440048, 738652, 1292641, 1477304, 2585282, 2954608, 5170564, 10341128, 20682256]

約数ペア:

[(1, 20682256), (2, 10341128), (4, 5170564), (7, 2954608), (8, 2585282), (14, 1477304), (16, 1292641), (28, 738652), (47, 440048), (56, 369326), (94, 220024), (112, 184663), (188, 110012), (329, 62864), (376, 55006), (658, 31432), (752, 27503), (1316, 15716), (2632, 7858), (3929, 5264)]