20802400

素因数分解:

$2^5\times 5^2\times {\mathrm{26003}}^1$

素因数の和:26023

約数の個数: 36

約数和(自身を含む): 50785812

約数和(自身を除く): 29983412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26003, 52006, 104012, 130015, 208024, 260030, 416048, 520060, 650075, 832096, 1040120, 1300150, 2080240, 2600300, 4160480, 5200600, 10401200, 20802400]

約数ペア:

[(1, 20802400), (2, 10401200), (4, 5200600), (5, 4160480), (8, 2600300), (10, 2080240), (16, 1300150), (20, 1040120), (25, 832096), (32, 650075), (40, 520060), (50, 416048), (80, 260030), (100, 208024), (160, 130015), (200, 104012), (400, 52006), (800, 26003)]