81500538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 209018880

約数和(自身を除く): 127518342

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 41, 42, 47, 53, 57, 82, 94, 106, 114, 123, 133, 141, 159, 246, 266, 282, 287, 318, 329, 371, 399, 574, 658, 742, 779, 798, 861, 893, 987, 1007, 1113, 1558, 1722, 1786, 1927, 1974, 2014, 2173, 2226, 2337, 2491, 2679, 3021, 3854, 4346, 4674, 4982, 5358, 5453, 5781, 6042, 6251, 6519, 7049, 7473, 10906, 11562, 12502, 13038, 13489, 14098, 14946, 15211, 16359, 17437, 18753, 21147, 26978, 30422, 32718, 34874, 36613, 37506, 40467, 41287, 42294, 45633, 47329, 52311, 73226, 80934, 82574, 91266, 94658, 102131, 104622, 109839, 123861, 141987, 204262, 219678, 247722, 256291, 283974, 289009, 306393, 331303, 512582, 578018, 612786, 662606, 714917, 768873, 867027, 993909, 1429834, 1537746, 1734054, 1940489, 1987818, 2144751, 3880978, 4289502, 5821467, 11642934, 13583423, 27166846, 40750269, 81500538]

約数ペア:

[(1, 81500538), (2, 40750269), (3, 27166846), (6, 13583423), (7, 11642934), (14, 5821467), (19, 4289502), (21, 3880978), (38, 2144751), (41, 1987818), (42, 1940489), (47, 1734054), (53, 1537746), (57, 1429834), (82, 993909), (94, 867027), (106, 768873), (114, 714917), (123, 662606), (133, 612786), (141, 578018), (159, 512582), (246, 331303), (266, 306393), (282, 289009), (287, 283974), (318, 256291), (329, 247722), (371, 219678), (399, 204262), (574, 141987), (658, 123861), (742, 109839), (779, 104622), (798, 102131), (861, 94658), (893, 91266), (987, 82574), (1007, 80934), (1113, 73226), (1558, 52311), (1722, 47329), (1786, 45633), (1927, 42294), (1974, 41287), (2014, 40467), (2173, 37506), (2226, 36613), (2337, 34874), (2491, 32718), (2679, 30422), (3021, 26978), (3854, 21147), (4346, 18753), (4674, 17437), (4982, 16359), (5358, 15211), (5453, 14946), (5781, 14098), (6042, 13489), (6251, 13038), (6519, 12502), (7049, 11562), (7473, 10906)]