81287766

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1047

約数の個数: 96

約数和(自身を含む): 217128960

約数和(自身を除く): 135841194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 49, 54, 62, 63, 93, 98, 126, 147, 186, 189, 217, 279, 294, 378, 434, 441, 558, 651, 837, 882, 991, 1302, 1323, 1519, 1674, 1953, 1982, 2646, 2973, 3038, 3906, 4557, 5859, 5946, 6937, 8919, 9114, 11718, 13671, 13874, 17838, 20811, 26757, 27342, 30721, 41013, 41622, 48559, 53514, 61442, 62433, 82026, 92163, 97118, 124866, 145677, 184326, 187299, 215047, 276489, 291354, 374598, 430094, 437031, 552978, 645141, 829467, 874062, 1290282, 1311093, 1505329, 1658934, 1935423, 2622186, 3010658, 3870846, 4515987, 5806269, 9031974, 11612538, 13547961, 27095922, 40643883, 81287766]

約数ペア:

[(1, 81287766), (2, 40643883), (3, 27095922), (6, 13547961), (7, 11612538), (9, 9031974), (14, 5806269), (18, 4515987), (21, 3870846), (27, 3010658), (31, 2622186), (42, 1935423), (49, 1658934), (54, 1505329), (62, 1311093), (63, 1290282), (93, 874062), (98, 829467), (126, 645141), (147, 552978), (186, 437031), (189, 430094), (217, 374598), (279, 291354), (294, 276489), (378, 215047), (434, 187299), (441, 184326), (558, 145677), (651, 124866), (837, 97118), (882, 92163), (991, 82026), (1302, 62433), (1323, 61442), (1519, 53514), (1674, 48559), (1953, 41622), (1982, 41013), (2646, 30721), (2973, 27342), (3038, 26757), (3906, 20811), (4557, 17838), (5859, 13874), (5946, 13671), (6937, 11718), (8919, 9114)]