20807130975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{115259}}^1$

素因数の和:115384

約数の個数: 48

約数和(自身を含む): 36016444800

約数和(自身を除く): 15209313825

約数列:

[1, 3, 5, 15, 25, 29, 75, 83, 87, 145, 249, 415, 435, 725, 1245, 2075, 2175, 2407, 6225, 7221, 12035, 36105, 60175, 115259, 180525, 345777, 576295, 1728885, 2881475, 3342511, 8644425, 9566497, 10027533, 16712555, 28699491, 47832485, 50137665, 83562775, 143497455, 239162425, 250688325, 277428413, 717487275, 832285239, 1387142065, 4161426195, 6935710325, 20807130975]

約数ペア:

[(1, 20807130975), (3, 6935710325), (5, 4161426195), (15, 1387142065), (25, 832285239), (29, 717487275), (75, 277428413), (83, 250688325), (87, 239162425), (145, 143497455), (249, 83562775), (415, 50137665), (435, 47832485), (725, 28699491), (1245, 16712555), (2075, 10027533), (2175, 9566497), (2407, 8644425), (6225, 3342511), (7221, 2881475), (12035, 1728885), (36105, 576295), (60175, 345777), (115259, 180525)]