257446

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 24

約数和(自身を含む): 467856

約数和(自身を除く): 210410

約数列:

[1, 2, 7, 14, 37, 49, 71, 74, 98, 142, 259, 497, 518, 994, 1813, 2627, 3479, 3626, 5254, 6958, 18389, 36778, 128723, 257446]

約数ペア:

[(1, 257446), (2, 128723), (7, 36778), (14, 18389), (37, 6958), (49, 5254), (71, 3626), (74, 3479), (98, 2627), (142, 1813), (259, 994), (497, 518)]