20500900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29287}}^1$

素因数の和:29308

約数の個数: 36

約数和(自身を含む): 50843968

約数和(自身を除く): 30343068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 29287, 58574, 117148, 146435, 205009, 292870, 410018, 585740, 732175, 820036, 1025045, 1464350, 2050090, 2928700, 4100180, 5125225, 10250450, 20500900]

約数ペア:

[(1, 20500900), (2, 10250450), (4, 5125225), (5, 4100180), (7, 2928700), (10, 2050090), (14, 1464350), (20, 1025045), (25, 820036), (28, 732175), (35, 585740), (50, 410018), (70, 292870), (100, 205009), (140, 146435), (175, 117148), (350, 58574), (700, 29287)]