71316531

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 128798208

約数和(自身を除く): 57481677

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 47, 81, 99, 117, 131, 141, 143, 297, 351, 393, 423, 429, 517, 611, 891, 1053, 1179, 1269, 1287, 1441, 1551, 1703, 1833, 3537, 3807, 3861, 4323, 4653, 5109, 5499, 6157, 6721, 10611, 11583, 12969, 13959, 15327, 16497, 18471, 18733, 20163, 38907, 41877, 45981, 49491, 55413, 56199, 60489, 67727, 80041, 116721, 137943, 166239, 168597, 181467, 203181, 240123, 498717, 505791, 544401, 609543, 720369, 880451, 1517373, 1828629, 2161107, 2641353, 5485887, 6483321, 7924059, 23772177, 71316531]

約数ペア:

[(1, 71316531), (3, 23772177), (9, 7924059), (11, 6483321), (13, 5485887), (27, 2641353), (33, 2161107), (39, 1828629), (47, 1517373), (81, 880451), (99, 720369), (117, 609543), (131, 544401), (141, 505791), (143, 498717), (297, 240123), (351, 203181), (393, 181467), (423, 168597), (429, 166239), (517, 137943), (611, 116721), (891, 80041), (1053, 67727), (1179, 60489), (1269, 56199), (1287, 55413), (1441, 49491), (1551, 45981), (1703, 41877), (1833, 38907), (3537, 20163), (3807, 18733), (3861, 18471), (4323, 16497), (4653, 15327), (5109, 13959), (5499, 12969), (6157, 11583), (6721, 10611)]