81412000

素因数分解:

$2^5\times 5^3\times {\mathrm{20353}}^1$

素因数の和:20378

約数の個数: 48

約数和(自身を含む): 200039112

約数和(自身を除く): 118627112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20353, 40706, 81412, 101765, 162824, 203530, 325648, 407060, 508825, 651296, 814120, 1017650, 1628240, 2035300, 2544125, 3256480, 4070600, 5088250, 8141200, 10176500, 16282400, 20353000, 40706000, 81412000]

約数ペア:

[(1, 81412000), (2, 40706000), (4, 20353000), (5, 16282400), (8, 10176500), (10, 8141200), (16, 5088250), (20, 4070600), (25, 3256480), (32, 2544125), (40, 2035300), (50, 1628240), (80, 1017650), (100, 814120), (125, 651296), (160, 508825), (200, 407060), (250, 325648), (400, 203530), (500, 162824), (800, 101765), (1000, 81412), (2000, 40706), (4000, 20353)]