280730187

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 443597440

約数和(自身を除く): 162867253

約数列:

[1, 3, 9, 19, 43, 57, 73, 129, 171, 219, 387, 523, 657, 817, 1387, 1569, 2451, 3139, 4161, 4707, 7353, 9417, 9937, 12483, 22489, 28251, 29811, 38179, 59641, 67467, 89433, 114537, 178923, 202401, 343611, 427291, 536769, 725401, 1281873, 1641697, 2176203, 3845619, 4925091, 6528609, 14775273, 31192243, 93576729, 280730187]

約数ペア:

[(1, 280730187), (3, 93576729), (9, 31192243), (19, 14775273), (43, 6528609), (57, 4925091), (73, 3845619), (129, 2176203), (171, 1641697), (219, 1281873), (387, 725401), (523, 536769), (657, 427291), (817, 343611), (1387, 202401), (1569, 178923), (2451, 114537), (3139, 89433), (4161, 67467), (4707, 59641), (7353, 38179), (9417, 29811), (9937, 28251), (12483, 22489)]