20566256

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 41341104

約数和(自身を除く): 20774848

約数列:

[1, 2, 4, 8, 16, 41, 82, 107, 164, 214, 293, 328, 428, 586, 656, 856, 1172, 1712, 2344, 4387, 4688, 8774, 12013, 17548, 24026, 31351, 35096, 48052, 62702, 70192, 96104, 125404, 192208, 250808, 501616, 1285391, 2570782, 5141564, 10283128, 20566256]

約数ペア:

[(1, 20566256), (2, 10283128), (4, 5141564), (8, 2570782), (16, 1285391), (41, 501616), (82, 250808), (107, 192208), (164, 125404), (214, 96104), (293, 70192), (328, 62702), (428, 48052), (586, 35096), (656, 31351), (856, 24026), (1172, 17548), (1712, 12013), (2344, 8774), (4387, 4688)]