217427900

素因数分解:

$2^2\times 5^2\times {\mathrm{541}}^1\times {\mathrm{4019}}^1$

素因数の和:4574

約数の個数: 36

約数和(自身を含む): 472808280

約数和(自身を除く): 255380380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 541, 1082, 2164, 2705, 4019, 5410, 8038, 10820, 13525, 16076, 20095, 27050, 40190, 54100, 80380, 100475, 200950, 401900, 2174279, 4348558, 8697116, 10871395, 21742790, 43485580, 54356975, 108713950, 217427900]

約数ペア:

[(1, 217427900), (2, 108713950), (4, 54356975), (5, 43485580), (10, 21742790), (20, 10871395), (25, 8697116), (50, 4348558), (100, 2174279), (541, 401900), (1082, 200950), (2164, 100475), (2705, 80380), (4019, 54100), (5410, 40190), (8038, 27050), (10820, 20095), (13525, 16076)]