20008605

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 33136128

約数和(自身を除く): 13127523

約数列:

[1, 3, 5, 15, 47, 101, 141, 235, 281, 303, 505, 705, 843, 1405, 1515, 4215, 4747, 13207, 14241, 23735, 28381, 39621, 66035, 71205, 85143, 141905, 198105, 425715, 1333907, 4001721, 6669535, 20008605]

約数ペア:

[(1, 20008605), (3, 6669535), (5, 4001721), (15, 1333907), (47, 425715), (101, 198105), (141, 141905), (235, 85143), (281, 71205), (303, 66035), (505, 39621), (705, 28381), (843, 23735), (1405, 14241), (1515, 13207), (4215, 4747)]