28349920

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1061}}^1$

素因数の和:1243

約数の個数: 48

約数和(自身を含む): 67441248

約数和(自身を除く): 39091328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 835, 1061, 1336, 1670, 2122, 2672, 3340, 4244, 5305, 5344, 6680, 8488, 10610, 13360, 16976, 21220, 26720, 33952, 42440, 84880, 169760, 177187, 354374, 708748, 885935, 1417496, 1771870, 2834992, 3543740, 5669984, 7087480, 14174960, 28349920]

約数ペア:

[(1, 28349920), (2, 14174960), (4, 7087480), (5, 5669984), (8, 3543740), (10, 2834992), (16, 1771870), (20, 1417496), (32, 885935), (40, 708748), (80, 354374), (160, 177187), (167, 169760), (334, 84880), (668, 42440), (835, 33952), (1061, 26720), (1336, 21220), (1670, 16976), (2122, 13360), (2672, 10610), (3340, 8488), (4244, 6680), (5305, 5344)]