2540664

素因数分解:

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

素因数の和:161

約数の個数: 72

約数和(自身を含む): 7976280

約数和(自身を除く): 5435616

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 71, 72, 84, 126, 142, 168, 213, 252, 284, 426, 497, 504, 568, 639, 852, 994, 1278, 1491, 1704, 1988, 2556, 2982, 3976, 4473, 5041, 5112, 5964, 8946, 10082, 11928, 15123, 17892, 20164, 30246, 35287, 35784, 40328, 45369, 60492, 70574, 90738, 105861, 120984, 141148, 181476, 211722, 282296, 317583, 362952, 423444, 635166, 846888, 1270332, 2540664]

約数ペア:

[(1, 2540664), (2, 1270332), (3, 846888), (4, 635166), (6, 423444), (7, 362952), (8, 317583), (9, 282296), (12, 211722), (14, 181476), (18, 141148), (21, 120984), (24, 105861), (28, 90738), (36, 70574), (42, 60492), (56, 45369), (63, 40328), (71, 35784), (72, 35287), (84, 30246), (126, 20164), (142, 17892), (168, 15123), (213, 11928), (252, 10082), (284, 8946), (426, 5964), (497, 5112), (504, 5041), (568, 4473), (639, 3976), (852, 2982), (994, 2556), (1278, 1988), (1491, 1704)]