20078081716

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1386991}}^1$

素因数の和:1387060

約数の個数: 48

約数和(自身を含む): 44738813952

約数和(自身を除く): 24660732236

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 154, 188, 308, 329, 517, 658, 1034, 1316, 2068, 3619, 7238, 14476, 1386991, 2773982, 5547964, 9708937, 15256901, 19417874, 30513802, 38835748, 61027604, 65188577, 106798307, 130377154, 213596614, 260754308, 427193228, 456320039, 717074347, 912640078, 1434148694, 1825280156, 2868297388, 5019520429, 10039040858, 20078081716]

約数ペア:

[(1, 20078081716), (2, 10039040858), (4, 5019520429), (7, 2868297388), (11, 1825280156), (14, 1434148694), (22, 912640078), (28, 717074347), (44, 456320039), (47, 427193228), (77, 260754308), (94, 213596614), (154, 130377154), (188, 106798307), (308, 65188577), (329, 61027604), (517, 38835748), (658, 30513802), (1034, 19417874), (1316, 15256901), (2068, 9708937), (3619, 5547964), (7238, 2773982), (14476, 1386991)]