20425400

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1399}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 48174000

約数和(自身を除く): 27748600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 146, 200, 292, 365, 584, 730, 1399, 1460, 1825, 2798, 2920, 3650, 5596, 6995, 7300, 11192, 13990, 14600, 27980, 34975, 55960, 69950, 102127, 139900, 204254, 279800, 408508, 510635, 817016, 1021270, 2042540, 2553175, 4085080, 5106350, 10212700, 20425400]

約数ペア:

[(1, 20425400), (2, 10212700), (4, 5106350), (5, 4085080), (8, 2553175), (10, 2042540), (20, 1021270), (25, 817016), (40, 510635), (50, 408508), (73, 279800), (100, 204254), (146, 139900), (200, 102127), (292, 69950), (365, 55960), (584, 34975), (730, 27980), (1399, 14600), (1460, 13990), (1825, 11192), (2798, 7300), (2920, 6995), (3650, 5596)]