20778908980

素因数分解:

$2^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{691}}^1\times {\mathrm{2477}}^1$

素因数の和:3784

約数の個数: 48

約数和(自身を含む): 43788519936

約数和(自身を除く): 23009610956

約数列:

[1, 2, 4, 5, 10, 20, 607, 691, 1214, 1382, 2428, 2477, 2764, 3035, 3455, 4954, 6070, 6910, 9908, 12140, 12385, 13820, 24770, 49540, 419437, 838874, 1503539, 1677748, 1711607, 2097185, 3007078, 3423214, 4194370, 6014156, 6846428, 7517695, 8388740, 8558035, 15035390, 17116070, 30070780, 34232140, 1038945449, 2077890898, 4155781796, 5194727245, 10389454490, 20778908980]

約数ペア:

[(1, 20778908980), (2, 10389454490), (4, 5194727245), (5, 4155781796), (10, 2077890898), (20, 1038945449), (607, 34232140), (691, 30070780), (1214, 17116070), (1382, 15035390), (2428, 8558035), (2477, 8388740), (2764, 7517695), (3035, 6846428), (3455, 6014156), (4954, 4194370), (6070, 3423214), (6910, 3007078), (9908, 2097185), (12140, 1711607), (12385, 1677748), (13820, 1503539), (24770, 838874), (49540, 419437)]