821200

素因数分解:

$2^4\times 5^2\times {\mathrm{2053}}^1$

素因数の和:2071

約数の個数: 30

約数和(自身を含む): 1973894

約数和(自身を除く): 1152694

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2053, 4106, 8212, 10265, 16424, 20530, 32848, 41060, 51325, 82120, 102650, 164240, 205300, 410600, 821200]

約数ペア:

[(1, 821200), (2, 410600), (4, 205300), (5, 164240), (8, 102650), (10, 82120), (16, 51325), (20, 41060), (25, 32848), (40, 20530), (50, 16424), (80, 10265), (100, 8212), (200, 4106), (400, 2053)]