28185864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 58905336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 71, 84, 102, 119, 136, 139, 142, 168, 204, 213, 238, 278, 284, 357, 408, 417, 426, 476, 497, 556, 568, 714, 834, 852, 952, 973, 994, 1112, 1207, 1428, 1491, 1668, 1704, 1946, 1988, 2363, 2414, 2856, 2919, 2982, 3336, 3621, 3892, 3976, 4726, 4828, 5838, 5964, 7089, 7242, 7784, 8449, 9452, 9656, 9869, 11676, 11928, 14178, 14484, 16541, 16898, 18904, 19738, 23352, 25347, 28356, 28968, 29607, 33082, 33796, 39476, 49623, 50694, 56712, 59214, 66164, 67592, 69083, 78952, 99246, 101388, 118428, 132328, 138166, 167773, 198492, 202776, 207249, 236856, 276332, 335546, 396984, 414498, 503319, 552664, 671092, 828996, 1006638, 1174411, 1342184, 1657992, 2013276, 2348822, 3523233, 4026552, 4697644, 7046466, 9395288, 14092932, 28185864]

約数ペア:

[(1, 28185864), (2, 14092932), (3, 9395288), (4, 7046466), (6, 4697644), (7, 4026552), (8, 3523233), (12, 2348822), (14, 2013276), (17, 1657992), (21, 1342184), (24, 1174411), (28, 1006638), (34, 828996), (42, 671092), (51, 552664), (56, 503319), (68, 414498), (71, 396984), (84, 335546), (102, 276332), (119, 236856), (136, 207249), (139, 202776), (142, 198492), (168, 167773), (204, 138166), (213, 132328), (238, 118428), (278, 101388), (284, 99246), (357, 78952), (408, 69083), (417, 67592), (426, 66164), (476, 59214), (497, 56712), (556, 50694), (568, 49623), (714, 39476), (834, 33796), (852, 33082), (952, 29607), (973, 28968), (994, 28356), (1112, 25347), (1207, 23352), (1428, 19738), (1491, 18904), (1668, 16898), (1704, 16541), (1946, 14484), (1988, 14178), (2363, 11928), (2414, 11676), (2856, 9869), (2919, 9656), (2982, 9452), (3336, 8449), (3621, 7784), (3892, 7242), (3976, 7089), (4726, 5964), (4828, 5838)]