20565184515

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1\times {\mathrm{26861}}^1$

素因数の和:28099

約数の個数: 32

約数和(自身を含む): 33699131136

約数和(自身を除く): 13133946621

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1187, 3561, 5935, 17805, 26861, 51041, 80583, 134305, 153123, 255205, 402915, 765615, 1155023, 3465069, 5775115, 17325345, 31884007, 95652021, 159420035, 478260105, 1371012301, 4113036903, 6855061505, 20565184515]

約数ペア:

[(1, 20565184515), (3, 6855061505), (5, 4113036903), (15, 1371012301), (43, 478260105), (129, 159420035), (215, 95652021), (645, 31884007), (1187, 17325345), (3561, 5775115), (5935, 3465069), (17805, 1155023), (26861, 765615), (51041, 402915), (80583, 255205), (134305, 153123)]