81997542

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 211415040

約数和(自身を除く): 129417498

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 31, 33, 54, 61, 62, 66, 73, 93, 99, 122, 146, 183, 186, 198, 219, 279, 297, 341, 366, 438, 549, 558, 594, 657, 671, 682, 803, 837, 1023, 1098, 1314, 1342, 1606, 1647, 1674, 1891, 1971, 2013, 2046, 2263, 2409, 3069, 3294, 3782, 3942, 4026, 4453, 4526, 4818, 5673, 6039, 6138, 6789, 7227, 8906, 9207, 11346, 12078, 13359, 13578, 14454, 17019, 18117, 18414, 20367, 20801, 21681, 24893, 26718, 34038, 36234, 40077, 40734, 41602, 43362, 48983, 49786, 51057, 61101, 62403, 74679, 80154, 97966, 102114, 120231, 122202, 124806, 138043, 146949, 149358, 187209, 224037, 240462, 276086, 293898, 374418, 414129, 440847, 448074, 561627, 672111, 828258, 881694, 1123254, 1242387, 1322541, 1344222, 1518473, 2484774, 2645082, 3036946, 3727161, 4555419, 7454322, 9110838, 13666257, 27332514, 40998771, 81997542]

約数ペア:

[(1, 81997542), (2, 40998771), (3, 27332514), (6, 13666257), (9, 9110838), (11, 7454322), (18, 4555419), (22, 3727161), (27, 3036946), (31, 2645082), (33, 2484774), (54, 1518473), (61, 1344222), (62, 1322541), (66, 1242387), (73, 1123254), (93, 881694), (99, 828258), (122, 672111), (146, 561627), (183, 448074), (186, 440847), (198, 414129), (219, 374418), (279, 293898), (297, 276086), (341, 240462), (366, 224037), (438, 187209), (549, 149358), (558, 146949), (594, 138043), (657, 124806), (671, 122202), (682, 120231), (803, 102114), (837, 97966), (1023, 80154), (1098, 74679), (1314, 62403), (1342, 61101), (1606, 51057), (1647, 49786), (1674, 48983), (1891, 43362), (1971, 41602), (2013, 40734), (2046, 40077), (2263, 36234), (2409, 34038), (3069, 26718), (3294, 24893), (3782, 21681), (3942, 20801), (4026, 20367), (4453, 18414), (4526, 18117), (4818, 17019), (5673, 14454), (6039, 13578), (6138, 13359), (6789, 12078), (7227, 11346), (8906, 9207)]