20161900

素因数分解:

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

素因数の和:18354

約数の個数: 36

約数和(自身を含む): 47731320

約数和(自身を除く): 27569420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18329, 36658, 73316, 91645, 183290, 201619, 366580, 403238, 458225, 806476, 916450, 1008095, 1832900, 2016190, 4032380, 5040475, 10080950, 20161900]

約数ペア:

[(1, 20161900), (2, 10080950), (4, 5040475), (5, 4032380), (10, 2016190), (11, 1832900), (20, 1008095), (22, 916450), (25, 806476), (44, 458225), (50, 403238), (55, 366580), (100, 201619), (110, 183290), (220, 91645), (275, 73316), (550, 36658), (1100, 18329)]