279904995

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 496161120

約数和(自身を除く): 216256125

約数列:

[1, 3, 5, 9, 15, 45, 73, 139, 219, 365, 417, 613, 657, 695, 1095, 1251, 1839, 2085, 3065, 3285, 5517, 6255, 9195, 10147, 27585, 30441, 44749, 50735, 85207, 91323, 134247, 152205, 223745, 255621, 402741, 426035, 456615, 671235, 766863, 1278105, 2013705, 3834315, 6220111, 18660333, 31100555, 55980999, 93301665, 279904995]

約数ペア:

[(1, 279904995), (3, 93301665), (5, 55980999), (9, 31100555), (15, 18660333), (45, 6220111), (73, 3834315), (139, 2013705), (219, 1278105), (365, 766863), (417, 671235), (613, 456615), (657, 426035), (695, 402741), (1095, 255621), (1251, 223745), (1839, 152205), (2085, 134247), (3065, 91323), (3285, 85207), (5517, 50735), (6255, 44749), (9195, 30441), (10147, 27585)]