8404400

素因数分解:

$2^4\times 5^2\times {\mathrm{21011}}^1$

素因数の和:21029

約数の個数: 30

約数和(自身を含む): 20192532

約数和(自身を除く): 11788132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 21011, 42022, 84044, 105055, 168088, 210110, 336176, 420220, 525275, 840440, 1050550, 1680880, 2101100, 4202200, 8404400]

約数ペア:

[(1, 8404400), (2, 4202200), (4, 2101100), (5, 1680880), (8, 1050550), (10, 840440), (16, 525275), (20, 420220), (25, 336176), (40, 210110), (50, 168088), (80, 105055), (100, 84044), (200, 42022), (400, 21011)]