20283500

素因数分解:

$2^2\times 5^3\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 24532180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 125, 226, 250, 359, 452, 500, 565, 718, 1130, 1436, 1795, 2260, 2825, 3590, 5650, 7180, 8975, 11300, 14125, 17950, 28250, 35900, 40567, 44875, 56500, 81134, 89750, 162268, 179500, 202835, 405670, 811340, 1014175, 2028350, 4056700, 5070875, 10141750, 20283500]

約数ペア:

[(1, 20283500), (2, 10141750), (4, 5070875), (5, 4056700), (10, 2028350), (20, 1014175), (25, 811340), (50, 405670), (100, 202835), (113, 179500), (125, 162268), (226, 89750), (250, 81134), (359, 56500), (452, 44875), (500, 40567), (565, 35900), (718, 28250), (1130, 17950), (1436, 14125), (1795, 11300), (2260, 8975), (2825, 7180), (3590, 5650)]