199289920

素因数分解:

$2^6\times 5^1\times {\mathrm{622781}}^1$

素因数の和:622798

約数の個数: 28

約数和(自身を含む): 474559884

約数和(自身を除く): 275269964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 622781, 1245562, 2491124, 3113905, 4982248, 6227810, 9964496, 12455620, 19928992, 24911240, 39857984, 49822480, 99644960, 199289920]

約数ペア:

[(1, 199289920), (2, 99644960), (4, 49822480), (5, 39857984), (8, 24911240), (10, 19928992), (16, 12455620), (20, 9964496), (32, 6227810), (40, 4982248), (64, 3113905), (80, 2491124), (160, 1245562), (320, 622781)]