20161728

素因数分解:

$2^6\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 168

約数和(自身を含む): 64190880

約数和(自身を除く): 44029152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 29, 32, 34, 36, 48, 51, 58, 64, 68, 71, 72, 87, 96, 102, 116, 136, 142, 144, 153, 174, 192, 204, 213, 232, 261, 272, 284, 288, 306, 348, 408, 426, 464, 493, 522, 544, 568, 576, 612, 639, 696, 816, 852, 928, 986, 1044, 1088, 1136, 1207, 1224, 1278, 1392, 1479, 1632, 1704, 1856, 1972, 2059, 2088, 2272, 2414, 2448, 2556, 2784, 2958, 3264, 3408, 3621, 3944, 4118, 4176, 4437, 4544, 4828, 4896, 5112, 5568, 5916, 6177, 6816, 7242, 7888, 8236, 8352, 8874, 9656, 9792, 10224, 10863, 11832, 12354, 13632, 14484, 15776, 16472, 16704, 17748, 18531, 19312, 20448, 21726, 23664, 24708, 28968, 31552, 32944, 35003, 35496, 37062, 38624, 40896, 43452, 47328, 49416, 57936, 65888, 70006, 70992, 74124, 77248, 86904, 94656, 98832, 105009, 115872, 131776, 140012, 141984, 148248, 173808, 197664, 210018, 231744, 280024, 283968, 296496, 315027, 347616, 395328, 420036, 560048, 592992, 630054, 695232, 840072, 1120096, 1185984, 1260108, 1680144, 2240192, 2520216, 3360288, 5040432, 6720576, 10080864, 20161728]

約数ペア:

[(1, 20161728), (2, 10080864), (3, 6720576), (4, 5040432), (6, 3360288), (8, 2520216), (9, 2240192), (12, 1680144), (16, 1260108), (17, 1185984), (18, 1120096), (24, 840072), (29, 695232), (32, 630054), (34, 592992), (36, 560048), (48, 420036), (51, 395328), (58, 347616), (64, 315027), (68, 296496), (71, 283968), (72, 280024), (87, 231744), (96, 210018), (102, 197664), (116, 173808), (136, 148248), (142, 141984), (144, 140012), (153, 131776), (174, 115872), (192, 105009), (204, 98832), (213, 94656), (232, 86904), (261, 77248), (272, 74124), (284, 70992), (288, 70006), (306, 65888), (348, 57936), (408, 49416), (426, 47328), (464, 43452), (493, 40896), (522, 38624), (544, 37062), (568, 35496), (576, 35003), (612, 32944), (639, 31552), (696, 28968), (816, 24708), (852, 23664), (928, 21726), (986, 20448), (1044, 19312), (1088, 18531), (1136, 17748), (1207, 16704), (1224, 16472), (1278, 15776), (1392, 14484), (1479, 13632), (1632, 12354), (1704, 11832), (1856, 10863), (1972, 10224), (2059, 9792), (2088, 9656), (2272, 8874), (2414, 8352), (2448, 8236), (2556, 7888), (2784, 7242), (2958, 6816), (3264, 6177), (3408, 5916), (3621, 5568), (3944, 5112), (4118, 4896), (4176, 4828), (4437, 4544)]