3958000

素因数分解:

$2^4\times 5^3\times {\mathrm{1979}}^1$

素因数の和:2002

約数の個数: 40

約数和(自身を含む): 9575280

約数和(自身を除く): 5617280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1979, 2000, 3958, 7916, 9895, 15832, 19790, 31664, 39580, 49475, 79160, 98950, 158320, 197900, 247375, 395800, 494750, 791600, 989500, 1979000, 3958000]

約数ペア:

[(1, 3958000), (2, 1979000), (4, 989500), (5, 791600), (8, 494750), (10, 395800), (16, 247375), (20, 197900), (25, 158320), (40, 98950), (50, 79160), (80, 49475), (100, 39580), (125, 31664), (200, 19790), (250, 15832), (400, 9895), (500, 7916), (1000, 3958), (1979, 2000)]