21890300

素因数分解:

$2^2\times 5^2\times {\mathrm{457}}^1\times {\mathrm{479}}^1$

素因数の和:950

約数の個数: 36

約数和(自身を含む): 47705280

約数和(自身を除く): 25814980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 457, 479, 914, 958, 1828, 1916, 2285, 2395, 4570, 4790, 9140, 9580, 11425, 11975, 22850, 23950, 45700, 47900, 218903, 437806, 875612, 1094515, 2189030, 4378060, 5472575, 10945150, 21890300]

約数ペア:

[(1, 21890300), (2, 10945150), (4, 5472575), (5, 4378060), (10, 2189030), (20, 1094515), (25, 875612), (50, 437806), (100, 218903), (457, 47900), (479, 45700), (914, 23950), (958, 22850), (1828, 11975), (1916, 11425), (2285, 9580), (2395, 9140), (4570, 4790)]