81661470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1889}}^1$

素因数の和:2041

約数の個数: 64

約数和(自身を含む): 215550720

約数和(自身を除く): 133889250

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 131, 165, 262, 330, 393, 655, 786, 1310, 1441, 1889, 1965, 2882, 3778, 3930, 4323, 5667, 7205, 8646, 9445, 11334, 14410, 18890, 20779, 21615, 28335, 41558, 43230, 56670, 62337, 103895, 124674, 207790, 247459, 311685, 494918, 623370, 742377, 1237295, 1484754, 2474590, 2722049, 3711885, 5444098, 7423770, 8166147, 13610245, 16332294, 27220490, 40830735, 81661470]

約数ペア:

[(1, 81661470), (2, 40830735), (3, 27220490), (5, 16332294), (6, 13610245), (10, 8166147), (11, 7423770), (15, 5444098), (22, 3711885), (30, 2722049), (33, 2474590), (55, 1484754), (66, 1237295), (110, 742377), (131, 623370), (165, 494918), (262, 311685), (330, 247459), (393, 207790), (655, 124674), (786, 103895), (1310, 62337), (1441, 56670), (1889, 43230), (1965, 41558), (2882, 28335), (3778, 21615), (3930, 20779), (4323, 18890), (5667, 14410), (7205, 11334), (8646, 9445)]