81507776

素因数分解:

$2^6\times 7^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 112

約数和(自身を含む): 195072000

約数和(自身を除く): 113564224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 64, 79, 94, 98, 112, 158, 188, 196, 224, 316, 329, 343, 376, 392, 448, 553, 632, 658, 686, 752, 784, 1106, 1264, 1316, 1372, 1504, 1568, 2212, 2303, 2528, 2632, 2744, 3008, 3136, 3713, 3871, 4424, 4606, 5056, 5264, 5488, 7426, 7742, 8848, 9212, 10528, 10976, 14852, 15484, 16121, 17696, 18424, 21056, 21952, 25991, 27097, 29704, 30968, 32242, 35392, 36848, 51982, 54194, 59408, 61936, 64484, 73696, 103964, 108388, 118816, 123872, 128968, 147392, 181937, 207928, 216776, 237632, 247744, 257936, 363874, 415856, 433552, 515872, 727748, 831712, 867104, 1031744, 1273559, 1455496, 1663424, 1734208, 2547118, 2910992, 5094236, 5821984, 10188472, 11643968, 20376944, 40753888, 81507776]

約数ペア:

[(1, 81507776), (2, 40753888), (4, 20376944), (7, 11643968), (8, 10188472), (14, 5821984), (16, 5094236), (28, 2910992), (32, 2547118), (47, 1734208), (49, 1663424), (56, 1455496), (64, 1273559), (79, 1031744), (94, 867104), (98, 831712), (112, 727748), (158, 515872), (188, 433552), (196, 415856), (224, 363874), (316, 257936), (329, 247744), (343, 237632), (376, 216776), (392, 207928), (448, 181937), (553, 147392), (632, 128968), (658, 123872), (686, 118816), (752, 108388), (784, 103964), (1106, 73696), (1264, 64484), (1316, 61936), (1372, 59408), (1504, 54194), (1568, 51982), (2212, 36848), (2303, 35392), (2528, 32242), (2632, 30968), (2744, 29704), (3008, 27097), (3136, 25991), (3713, 21952), (3871, 21056), (4424, 18424), (4606, 17696), (5056, 16121), (5264, 15484), (5488, 14852), (7426, 10976), (7742, 10528), (8848, 9212)]