28249540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1759}}^1$

素因数の和:1852

約数の個数: 48

約数和(自身を含む): 65640960

約数和(自身を除く): 37391420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1460, 1606, 1759, 3212, 3518, 4015, 7036, 8030, 8795, 16060, 17590, 19349, 35180, 38698, 77396, 96745, 128407, 193490, 256814, 386980, 513628, 642035, 1284070, 1412477, 2568140, 2824954, 5649908, 7062385, 14124770, 28249540]

約数ペア:

[(1, 28249540), (2, 14124770), (4, 7062385), (5, 5649908), (10, 2824954), (11, 2568140), (20, 1412477), (22, 1284070), (44, 642035), (55, 513628), (73, 386980), (110, 256814), (146, 193490), (220, 128407), (292, 96745), (365, 77396), (730, 38698), (803, 35180), (1460, 19349), (1606, 17590), (1759, 16060), (3212, 8795), (3518, 8030), (4015, 7036)]