257435638

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{66797}}^1$

素因数の和:66887

約数の個数: 16

約数和(自身を含む): 403994304

約数和(自身を除く): 146558666

約数列:

[1, 2, 41, 47, 82, 94, 1927, 3854, 66797, 133594, 2738677, 3139459, 5477354, 6278918, 128717819, 257435638]

約数ペア:

[(1, 257435638), (2, 128717819), (41, 6278918), (47, 5477354), (82, 3139459), (94, 2738677), (1927, 133594), (3854, 66797)]