1827980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1187}}^1$

素因数の和:1214

約数の個数: 48

約数和(自身を含む): 4790016

約数和(自身を除く): 2962036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1187, 1540, 2374, 4748, 5935, 8309, 11870, 13057, 16618, 23740, 26114, 33236, 41545, 52228, 65285, 83090, 91399, 130570, 166180, 182798, 261140, 365596, 456995, 913990, 1827980]

約数ペア:

[(1, 1827980), (2, 913990), (4, 456995), (5, 365596), (7, 261140), (10, 182798), (11, 166180), (14, 130570), (20, 91399), (22, 83090), (28, 65285), (35, 52228), (44, 41545), (55, 33236), (70, 26114), (77, 23740), (110, 16618), (140, 13057), (154, 11870), (220, 8309), (308, 5935), (385, 4748), (770, 2374), (1187, 1540)]