20556850

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{3001}}^1$

素因数の和:3150

約数の個数: 24

約数和(自身を含む): 38527668

約数和(自身を除く): 17970818

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 3001, 3425, 6002, 6850, 15005, 30010, 75025, 150050, 411137, 822274, 2055685, 4111370, 10278425, 20556850]

約数ペア:

[(1, 20556850), (2, 10278425), (5, 4111370), (10, 2055685), (25, 822274), (50, 411137), (137, 150050), (274, 75025), (685, 30010), (1370, 15005), (3001, 6850), (3425, 6002)]