290438708

素因数分解:

$2^2\times 7^1\times {\mathrm{1999}}^1\times {\mathrm{5189}}^1$

素因数の和:7199

約数の個数: 24

約数和(自身を含む): 581280000

約数和(自身を除く): 290841292

約数列:

[1, 2, 4, 7, 14, 28, 1999, 3998, 5189, 7996, 10378, 13993, 20756, 27986, 36323, 55972, 72646, 145292, 10372811, 20745622, 41491244, 72609677, 145219354, 290438708]

約数ペア:

[(1, 290438708), (2, 145219354), (4, 72609677), (7, 41491244), (14, 20745622), (28, 10372811), (1999, 145292), (3998, 72646), (5189, 55972), (7996, 36323), (10378, 27986), (13993, 20756)]