20565648635

素因数分解:

$5^1\times 7^2\times {\mathrm{607}}^1\times {\mathrm{138289}}^1$

素因数の和:138915

約数の個数: 24

約数和(自身を含む): 28755469440

約数和(自身を除く): 8189820805

約数列:

[1, 5, 7, 35, 49, 245, 607, 3035, 4249, 21245, 29743, 138289, 148715, 691445, 968023, 4840115, 6776161, 33880805, 83941423, 419707115, 587589961, 2937949805, 4113129727, 20565648635]

約数ペア:

[(1, 20565648635), (5, 4113129727), (7, 2937949805), (35, 587589961), (49, 419707115), (245, 83941423), (607, 33880805), (3035, 6776161), (4249, 4840115), (21245, 968023), (29743, 691445), (138289, 148715)]