81311472

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 160

約数和(自身を含む): 259269120

約数和(自身を除く): 177957648

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 71, 72, 88, 99, 108, 132, 142, 144, 176, 198, 213, 216, 241, 264, 284, 297, 396, 426, 432, 482, 528, 568, 594, 639, 723, 781, 792, 852, 964, 1136, 1188, 1278, 1446, 1562, 1584, 1704, 1917, 1928, 2169, 2343, 2376, 2556, 2651, 2892, 3124, 3408, 3834, 3856, 4338, 4686, 4752, 5112, 5302, 5784, 6248, 6507, 7029, 7668, 7953, 8676, 9372, 10224, 10604, 11568, 12496, 13014, 14058, 15336, 15906, 17111, 17352, 18744, 21087, 21208, 23859, 26028, 28116, 30672, 31812, 34222, 34704, 37488, 42174, 42416, 47718, 51333, 52056, 56232, 63624, 68444, 71577, 84348, 95436, 102666, 104112, 112464, 127248, 136888, 143154, 153999, 168696, 188221, 190872, 205332, 273776, 286308, 307998, 337392, 376442, 381744, 410664, 461997, 564663, 572616, 615996, 752884, 821328, 923994, 1129326, 1145232, 1231992, 1505768, 1693989, 1847988, 2258652, 2463984, 3011536, 3387978, 3695976, 4517304, 5081967, 6775956, 7391952, 9034608, 10163934, 13551912, 20327868, 27103824, 40655736, 81311472]

約数ペア:

[(1, 81311472), (2, 40655736), (3, 27103824), (4, 20327868), (6, 13551912), (8, 10163934), (9, 9034608), (11, 7391952), (12, 6775956), (16, 5081967), (18, 4517304), (22, 3695976), (24, 3387978), (27, 3011536), (33, 2463984), (36, 2258652), (44, 1847988), (48, 1693989), (54, 1505768), (66, 1231992), (71, 1145232), (72, 1129326), (88, 923994), (99, 821328), (108, 752884), (132, 615996), (142, 572616), (144, 564663), (176, 461997), (198, 410664), (213, 381744), (216, 376442), (241, 337392), (264, 307998), (284, 286308), (297, 273776), (396, 205332), (426, 190872), (432, 188221), (482, 168696), (528, 153999), (568, 143154), (594, 136888), (639, 127248), (723, 112464), (781, 104112), (792, 102666), (852, 95436), (964, 84348), (1136, 71577), (1188, 68444), (1278, 63624), (1446, 56232), (1562, 52056), (1584, 51333), (1704, 47718), (1917, 42416), (1928, 42174), (2169, 37488), (2343, 34704), (2376, 34222), (2556, 31812), (2651, 30672), (2892, 28116), (3124, 26028), (3408, 23859), (3834, 21208), (3856, 21087), (4338, 18744), (4686, 17352), (4752, 17111), (5112, 15906), (5302, 15336), (5784, 14058), (6248, 13014), (6507, 12496), (7029, 11568), (7668, 10604), (7953, 10224), (8676, 9372)]