989444.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{2020979}}^1$

素因数の和:2020990

約数の個数: 16

約数和(自身を含む): 181888200

約数和(自身を除く): 101049040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2020979, 4041958, 8083916, 10104895, 16167832, 20209790, 40419580, 80839160]

約数ペア:

[(1, 80839160), (2, 40419580), (4, 20209790), (5, 16167832), (8, 10104895), (10, 8083916), (20, 4041958), (40, 2020979)]