20118054

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 47485440

約数和(自身を除く): 27367386

約数列:

[1, 2, 3, 6, 11, 22, 23, 29, 33, 46, 58, 66, 69, 87, 138, 174, 253, 319, 457, 506, 638, 667, 759, 914, 957, 1334, 1371, 1518, 1914, 2001, 2742, 4002, 5027, 7337, 10054, 10511, 13253, 14674, 15081, 21022, 22011, 26506, 30162, 31533, 39759, 44022, 63066, 79518, 115621, 145783, 231242, 291566, 304819, 346863, 437349, 609638, 693726, 874698, 914457, 1828914, 3353009, 6706018, 10059027, 20118054]

約数ペア:

[(1, 20118054), (2, 10059027), (3, 6706018), (6, 3353009), (11, 1828914), (22, 914457), (23, 874698), (29, 693726), (33, 609638), (46, 437349), (58, 346863), (66, 304819), (69, 291566), (87, 231242), (138, 145783), (174, 115621), (253, 79518), (319, 63066), (457, 44022), (506, 39759), (638, 31533), (667, 30162), (759, 26506), (914, 22011), (957, 21022), (1334, 15081), (1371, 14674), (1518, 13253), (1914, 10511), (2001, 10054), (2742, 7337), (4002, 5027)]