81516708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 256838400

約数和(自身を除く): 175321692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 149, 156, 167, 182, 234, 252, 273, 298, 334, 364, 447, 468, 501, 546, 596, 668, 819, 894, 1002, 1043, 1092, 1169, 1341, 1503, 1638, 1788, 1937, 2004, 2086, 2171, 2338, 2682, 3006, 3129, 3276, 3507, 3874, 4172, 4342, 4676, 5364, 5811, 6012, 6258, 6513, 7014, 7748, 8684, 9387, 10521, 11622, 12516, 13026, 13559, 14028, 15197, 17433, 18774, 19539, 21042, 23244, 24883, 26052, 27118, 30394, 34866, 37548, 39078, 40677, 42084, 45591, 49766, 54236, 60788, 69732, 74649, 78156, 81354, 91182, 99532, 122031, 136773, 149298, 162708, 174181, 182364, 223947, 244062, 273546, 298596, 323479, 348362, 447894, 488124, 522543, 547092, 646958, 696724, 895788, 970437, 1045086, 1293916, 1567629, 1940874, 2090172, 2264353, 2911311, 3135258, 3881748, 4528706, 5822622, 6270516, 6793059, 9057412, 11645244, 13586118, 20379177, 27172236, 40758354, 81516708]

約数ペア:

[(1, 81516708), (2, 40758354), (3, 27172236), (4, 20379177), (6, 13586118), (7, 11645244), (9, 9057412), (12, 6793059), (13, 6270516), (14, 5822622), (18, 4528706), (21, 3881748), (26, 3135258), (28, 2911311), (36, 2264353), (39, 2090172), (42, 1940874), (52, 1567629), (63, 1293916), (78, 1045086), (84, 970437), (91, 895788), (117, 696724), (126, 646958), (149, 547092), (156, 522543), (167, 488124), (182, 447894), (234, 348362), (252, 323479), (273, 298596), (298, 273546), (334, 244062), (364, 223947), (447, 182364), (468, 174181), (501, 162708), (546, 149298), (596, 136773), (668, 122031), (819, 99532), (894, 91182), (1002, 81354), (1043, 78156), (1092, 74649), (1169, 69732), (1341, 60788), (1503, 54236), (1638, 49766), (1788, 45591), (1937, 42084), (2004, 40677), (2086, 39078), (2171, 37548), (2338, 34866), (2682, 30394), (3006, 27118), (3129, 26052), (3276, 24883), (3507, 23244), (3874, 21042), (4172, 19539), (4342, 18774), (4676, 17433), (5364, 15197), (5811, 14028), (6012, 13559), (6258, 13026), (6513, 12516), (7014, 11622), (7748, 10521), (8684, 9387)]