200780900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{28279}}^1$

素因数の和:28364

約数の個数: 36

約数和(自身を含む): 441846720

約数和(自身を除く): 241065820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 28279, 56558, 113116, 141395, 282790, 565580, 706975, 1413950, 2007809, 2827900, 4015618, 8031236, 10039045, 20078090, 40156180, 50195225, 100390450, 200780900]

約数ペア:

[(1, 200780900), (2, 100390450), (4, 50195225), (5, 40156180), (10, 20078090), (20, 10039045), (25, 8031236), (50, 4015618), (71, 2827900), (100, 2007809), (142, 1413950), (284, 706975), (355, 565580), (710, 282790), (1420, 141395), (1775, 113116), (3550, 56558), (7100, 28279)]