81038958

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 221405184

約数和(自身を除く): 140366226

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 103, 131, 143, 154, 182, 206, 231, 262, 273, 286, 309, 393, 429, 462, 546, 618, 721, 786, 858, 917, 1001, 1133, 1339, 1441, 1442, 1703, 1834, 2002, 2163, 2266, 2678, 2751, 2882, 3003, 3399, 3406, 4017, 4323, 4326, 5109, 5502, 6006, 6798, 7931, 8034, 8646, 9373, 10087, 10218, 11921, 13493, 14729, 15862, 18733, 18746, 20174, 23793, 23842, 26986, 28119, 29458, 30261, 35763, 37466, 40479, 44187, 47586, 56199, 56238, 60522, 71526, 80958, 88374, 94451, 103103, 112398, 131131, 148423, 175409, 188902, 206206, 262262, 283353, 296846, 309309, 350818, 393393, 445269, 526227, 566706, 618618, 786786, 890538, 1038961, 1052454, 1227863, 1929499, 2077922, 2455726, 3116883, 3683589, 3858998, 5788497, 6233766, 7367178, 11576994, 13506493, 27012986, 40519479, 81038958]

約数ペア:

[(1, 81038958), (2, 40519479), (3, 27012986), (6, 13506493), (7, 11576994), (11, 7367178), (13, 6233766), (14, 5788497), (21, 3858998), (22, 3683589), (26, 3116883), (33, 2455726), (39, 2077922), (42, 1929499), (66, 1227863), (77, 1052454), (78, 1038961), (91, 890538), (103, 786786), (131, 618618), (143, 566706), (154, 526227), (182, 445269), (206, 393393), (231, 350818), (262, 309309), (273, 296846), (286, 283353), (309, 262262), (393, 206206), (429, 188902), (462, 175409), (546, 148423), (618, 131131), (721, 112398), (786, 103103), (858, 94451), (917, 88374), (1001, 80958), (1133, 71526), (1339, 60522), (1441, 56238), (1442, 56199), (1703, 47586), (1834, 44187), (2002, 40479), (2163, 37466), (2266, 35763), (2678, 30261), (2751, 29458), (2882, 28119), (3003, 26986), (3399, 23842), (3406, 23793), (4017, 20174), (4323, 18746), (4326, 18733), (5109, 15862), (5502, 14729), (6006, 13493), (6798, 11921), (7931, 10218), (8034, 10087), (8646, 9373)]