20549000

素因数分解:

$2^3\times 5^3\times {\mathrm{20549}}^1$

素因数の和:20570

約数の個数: 32

約数和(自身を含む): 48087000

約数和(自身を除く): 27538000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20549, 41098, 82196, 102745, 164392, 205490, 410980, 513725, 821960, 1027450, 2054900, 2568625, 4109800, 5137250, 10274500, 20549000]

約数ペア:

[(1, 20549000), (2, 10274500), (4, 5137250), (5, 4109800), (8, 2568625), (10, 2054900), (20, 1027450), (25, 821960), (40, 513725), (50, 410980), (100, 205490), (125, 164392), (200, 102745), (250, 82196), (500, 41098), (1000, 20549)]