18851140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12241}}^1$

素因数の和:12268

約数の個数: 48

約数和(自身を含む): 49359744

約数和(自身を除く): 30508604

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, 1540, 12241, 24482, 48964, 61205, 85687, 122410, 134651, 171374, 244820, 269302, 342748, 428435, 538604, 673255, 856870, 942557, 1346510, 1713740, 1885114, 2693020, 3770228, 4712785, 9425570, 18851140]

約数ペア:

[(1, 18851140), (2, 9425570), (4, 4712785), (5, 3770228), (7, 2693020), (10, 1885114), (11, 1713740), (14, 1346510), (20, 942557), (22, 856870), (28, 673255), (35, 538604), (44, 428435), (55, 342748), (70, 269302), (77, 244820), (110, 171374), (140, 134651), (154, 122410), (220, 85687), (308, 61205), (385, 48964), (770, 24482), (1540, 12241)]