2157106175

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{76561}}^1$

素因数の和:76608

約数の個数: 36

約数和(自身を含む): 3246841296

約数和(自身を除く): 1089735121

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 805, 1127, 1225, 4025, 5635, 28175, 76561, 382805, 535927, 1760903, 1914025, 2679635, 3751489, 8804515, 12326321, 13398175, 18757445, 44022575, 61631605, 86284247, 93787225, 308158025, 431421235, 2157106175]

約数ペア:

[(1, 2157106175), (5, 431421235), (7, 308158025), (23, 93787225), (25, 86284247), (35, 61631605), (49, 44022575), (115, 18757445), (161, 13398175), (175, 12326321), (245, 8804515), (575, 3751489), (805, 2679635), (1127, 1914025), (1225, 1760903), (4025, 535927), (5635, 382805), (28175, 76561)]