15999984

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:85

約数の個数: 320

約数和(自身を含む): 63329280

約数和(自身を除く): 47329296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 18, 21, 22, 24, 26, 27, 28, 33, 36, 37, 39, 42, 44, 48, 52, 54, 56, 63, 66, 72, 74, 77, 78, 84, 88, 91, 99, 104, 108, 111, 112, 117, 126, 132, 143, 144, 148, 154, 156, 168, 176, 182, 189, 198, 208, 216, 222, 231, 234, 252, 259, 264, 273, 286, 296, 297, 308, 312, 333, 336, 351, 364, 378, 396, 407, 429, 432, 444, 462, 468, 481, 504, 518, 528, 546, 572, 592, 594, 616, 624, 666, 693, 702, 728, 756, 777, 792, 814, 819, 858, 888, 924, 936, 962, 999, 1001, 1008, 1036, 1092, 1144, 1188, 1221, 1232, 1287, 1332, 1386, 1404, 1443, 1456, 1512, 1554, 1584, 1628, 1638, 1716, 1776, 1848, 1872, 1924, 1998, 2002, 2072, 2079, 2184, 2288, 2331, 2376, 2442, 2457, 2574, 2664, 2772, 2808, 2849, 2886, 3003, 3024, 3108, 3256, 3276, 3367, 3432, 3663, 3696, 3848, 3861, 3996, 4004, 4144, 4158, 4329, 4368, 4662, 4752, 4884, 4914, 5148, 5291, 5328, 5544, 5616, 5698, 5772, 6006, 6216, 6512, 6552, 6734, 6864, 6993, 7326, 7696, 7722, 7992, 8008, 8316, 8547, 8658, 9009, 9324, 9768, 9828, 10101, 10296, 10582, 10989, 11088, 11396, 11544, 12012, 12432, 12987, 13104, 13468, 13986, 14652, 15444, 15873, 15984, 16016, 16632, 17094, 17316, 18018, 18648, 19536, 19656, 20202, 20592, 21164, 21978, 22792, 23088, 24024, 25641, 25974, 26936, 27027, 27972, 29304, 30303, 30888, 31746, 33264, 34188, 34632, 36036, 37037, 37296, 39312, 40404, 42328, 43956, 45584, 47619, 48048, 51282, 51948, 53872, 54054, 55944, 58608, 60606, 61776, 63492, 68376, 69264, 72072, 74074, 76923, 80808, 84656, 87912, 90909, 95238, 102564, 103896, 108108, 111111, 111888, 121212, 126984, 136752, 142857, 144144, 148148, 153846, 161616, 175824, 181818, 190476, 205128, 207792, 216216, 222222, 242424, 253968, 285714, 296296, 307692, 333333, 363636, 380952, 410256, 432432, 444444, 484848, 571428, 592592, 615384, 666666, 727272, 761904, 888888, 999999, 1142856, 1230768, 1333332, 1454544, 1777776, 1999998, 2285712, 2666664, 3999996, 5333328, 7999992, 15999984]

約数ペア:

[(1, 15999984), (2, 7999992), (3, 5333328), (4, 3999996), (6, 2666664), (7, 2285712), (8, 1999998), (9, 1777776), (11, 1454544), (12, 1333332), (13, 1230768), (14, 1142856), (16, 999999), (18, 888888), (21, 761904), (22, 727272), (24, 666666), (26, 615384), (27, 592592), (28, 571428), (33, 484848), (36, 444444), (37, 432432), (39, 410256), (42, 380952), (44, 363636), (48, 333333), (52, 307692), (54, 296296), (56, 285714), (63, 253968), (66, 242424), (72, 222222), (74, 216216), (77, 207792), (78, 205128), (84, 190476), (88, 181818), (91, 175824), (99, 161616), (104, 153846), (108, 148148), (111, 144144), (112, 142857), (117, 136752), (126, 126984), (132, 121212), (143, 111888), (144, 111111), (148, 108108), (154, 103896), (156, 102564), (168, 95238), (176, 90909), (182, 87912), (189, 84656), (198, 80808), (208, 76923), (216, 74074), (222, 72072), (231, 69264), (234, 68376), (252, 63492), (259, 61776), (264, 60606), (273, 58608), (286, 55944), (296, 54054), (297, 53872), (308, 51948), (312, 51282), (333, 48048), (336, 47619), (351, 45584), (364, 43956), (378, 42328), (396, 40404), (407, 39312), (429, 37296), (432, 37037), (444, 36036), (462, 34632), (468, 34188), (481, 33264), (504, 31746), (518, 30888), (528, 30303), (546, 29304), (572, 27972), (592, 27027), (594, 26936), (616, 25974), (624, 25641), (666, 24024), (693, 23088), (702, 22792), (728, 21978), (756, 21164), (777, 20592), (792, 20202), (814, 19656), (819, 19536), (858, 18648), (888, 18018), (924, 17316), (936, 17094), (962, 16632), (999, 16016), (1001, 15984), (1008, 15873), (1036, 15444), (1092, 14652), (1144, 13986), (1188, 13468), (1221, 13104), (1232, 12987), (1287, 12432), (1332, 12012), (1386, 11544), (1404, 11396), (1443, 11088), (1456, 10989), (1512, 10582), (1554, 10296), (1584, 10101), (1628, 9828), (1638, 9768), (1716, 9324), (1776, 9009), (1848, 8658), (1872, 8547), (1924, 8316), (1998, 8008), (2002, 7992), (2072, 7722), (2079, 7696), (2184, 7326), (2288, 6993), (2331, 6864), (2376, 6734), (2442, 6552), (2457, 6512), (2574, 6216), (2664, 6006), (2772, 5772), (2808, 5698), (2849, 5616), (2886, 5544), (3003, 5328), (3024, 5291), (3108, 5148), (3256, 4914), (3276, 4884), (3367, 4752), (3432, 4662), (3663, 4368), (3696, 4329), (3848, 4158), (3861, 4144), (3996, 4004)]