20768944

素因数分解:

$2^4\times 7^2\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:530

約数の個数: 60

約数和(自身を含む): 47709000

約数和(自身を除く): 26940056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 59, 98, 112, 118, 196, 236, 392, 413, 449, 472, 784, 826, 898, 944, 1652, 1796, 2891, 3143, 3304, 3592, 5782, 6286, 6608, 7184, 11564, 12572, 22001, 23128, 25144, 26491, 44002, 46256, 50288, 52982, 88004, 105964, 176008, 185437, 211928, 352016, 370874, 423856, 741748, 1298059, 1483496, 2596118, 2966992, 5192236, 10384472, 20768944]

約数ペア:

[(1, 20768944), (2, 10384472), (4, 5192236), (7, 2966992), (8, 2596118), (14, 1483496), (16, 1298059), (28, 741748), (49, 423856), (56, 370874), (59, 352016), (98, 211928), (112, 185437), (118, 176008), (196, 105964), (236, 88004), (392, 52982), (413, 50288), (449, 46256), (472, 44002), (784, 26491), (826, 25144), (898, 23128), (944, 22001), (1652, 12572), (1796, 11564), (2891, 7184), (3143, 6608), (3304, 6286), (3592, 5782)]