28281288

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2371}}^1$

素因数の和:2458

約数の個数: 64

約数和(自身を含む): 81976320

約数和(自身を除く): 53695032

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1988, 2371, 2982, 3976, 4742, 5964, 7113, 9484, 11928, 14226, 16597, 18968, 28452, 33194, 49791, 56904, 66388, 99582, 132776, 168341, 199164, 336682, 398328, 505023, 673364, 1010046, 1178387, 1346728, 2020092, 2356774, 3535161, 4040184, 4713548, 7070322, 9427096, 14140644, 28281288]

約数ペア:

[(1, 28281288), (2, 14140644), (3, 9427096), (4, 7070322), (6, 4713548), (7, 4040184), (8, 3535161), (12, 2356774), (14, 2020092), (21, 1346728), (24, 1178387), (28, 1010046), (42, 673364), (56, 505023), (71, 398328), (84, 336682), (142, 199164), (168, 168341), (213, 132776), (284, 99582), (426, 66388), (497, 56904), (568, 49791), (852, 33194), (994, 28452), (1491, 18968), (1704, 16597), (1988, 14226), (2371, 11928), (2982, 9484), (3976, 7113), (4742, 5964)]