20658180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2477}}^1$

素因数の和:2628

約数の個数: 48

約数和(自身を含む): 58282560

約数和(自身を除く): 37624380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2477, 2780, 4170, 4954, 7431, 8340, 9908, 12385, 14862, 24770, 29724, 37155, 49540, 74310, 148620, 344303, 688606, 1032909, 1377212, 1721515, 2065818, 3443030, 4131636, 5164545, 6886060, 10329090, 20658180]

約数ペア:

[(1, 20658180), (2, 10329090), (3, 6886060), (4, 5164545), (5, 4131636), (6, 3443030), (10, 2065818), (12, 1721515), (15, 1377212), (20, 1032909), (30, 688606), (60, 344303), (139, 148620), (278, 74310), (417, 49540), (556, 37155), (695, 29724), (834, 24770), (1390, 14862), (1668, 12385), (2085, 9908), (2477, 8340), (2780, 7431), (4170, 4954)]