19621580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89189}}^1$

素因数の和:89209

約数の個数: 24

約数和(自身を含む): 44951760

約数和(自身を除く): 25330180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89189, 178378, 356756, 445945, 891890, 981079, 1783780, 1962158, 3924316, 4905395, 9810790, 19621580]

約数ペア:

[(1, 19621580), (2, 9810790), (4, 4905395), (5, 3924316), (10, 1962158), (11, 1783780), (20, 981079), (22, 891890), (44, 445945), (55, 356756), (110, 178378), (220, 89189)]