285278

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 24

約数和(自身を含む): 517104

約数和(自身を除く): 231826

約数列:

[1, 2, 7, 14, 41, 49, 71, 82, 98, 142, 287, 497, 574, 994, 2009, 2911, 3479, 4018, 5822, 6958, 20377, 40754, 142639, 285278]

約数ペア:

[(1, 285278), (2, 142639), (7, 40754), (14, 20377), (41, 6958), (49, 5822), (71, 4018), (82, 3479), (98, 2911), (142, 2009), (287, 994), (497, 574)]