1213563540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2889437}}^1$

素因数の和:2889456

約数の個数: 48

約数和(自身を含む): 3883404672

約数和(自身を除く): 2669841132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2889437, 5778874, 8668311, 11557748, 14447185, 17336622, 20226059, 28894370, 34673244, 40452118, 43341555, 57788740, 60678177, 80904236, 86683110, 101130295, 121356354, 173366220, 202260590, 242712708, 303390885, 404521180, 606781770, 1213563540]

約数ペア:

[(1, 1213563540), (2, 606781770), (3, 404521180), (4, 303390885), (5, 242712708), (6, 202260590), (7, 173366220), (10, 121356354), (12, 101130295), (14, 86683110), (15, 80904236), (20, 60678177), (21, 57788740), (28, 43341555), (30, 40452118), (35, 34673244), (42, 28894370), (60, 20226059), (70, 17336622), (84, 14447185), (105, 11557748), (140, 8668311), (210, 5778874), (420, 2889437)]