221780900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{18329}}^1$

素因数の和:18365

約数の個数: 54

約数和(自身を含む): 529022130

約数和(自身を除く): 307241230

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 2420, 3025, 6050, 12100, 18329, 36658, 73316, 91645, 183290, 201619, 366580, 403238, 458225, 806476, 916450, 1008095, 1832900, 2016190, 2217809, 4032380, 4435618, 5040475, 8871236, 10080950, 11089045, 20161900, 22178090, 44356180, 55445225, 110890450, 221780900]

約数ペア:

[(1, 221780900), (2, 110890450), (4, 55445225), (5, 44356180), (10, 22178090), (11, 20161900), (20, 11089045), (22, 10080950), (25, 8871236), (44, 5040475), (50, 4435618), (55, 4032380), (100, 2217809), (110, 2016190), (121, 1832900), (220, 1008095), (242, 916450), (275, 806476), (484, 458225), (550, 403238), (605, 366580), (1100, 201619), (1210, 183290), (2420, 91645), (3025, 73316), (6050, 36658), (12100, 18329)]