51156380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{21139}}^1$

素因数の和:21170

約数の個数: 36

約数和(自身を含む): 118088040

約数和(自身を除く): 66931660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 21139, 42278, 84556, 105695, 211390, 232529, 422780, 465058, 930116, 1162645, 2325290, 2557819, 4650580, 5115638, 10231276, 12789095, 25578190, 51156380]

約数ペア:

[(1, 51156380), (2, 25578190), (4, 12789095), (5, 10231276), (10, 5115638), (11, 4650580), (20, 2557819), (22, 2325290), (44, 1162645), (55, 930116), (110, 465058), (121, 422780), (220, 232529), (242, 211390), (484, 105695), (605, 84556), (1210, 42278), (2420, 21139)]