208891100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{189901}}^1$

素因数の和:189926

約数の個数: 36

約数和(自身を含む): 494504808

約数和(自身を除く): 285613708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 189901, 379802, 759604, 949505, 1899010, 2088911, 3798020, 4177822, 4747525, 8355644, 9495050, 10444555, 18990100, 20889110, 41778220, 52222775, 104445550, 208891100]

約数ペア:

[(1, 208891100), (2, 104445550), (4, 52222775), (5, 41778220), (10, 20889110), (11, 18990100), (20, 10444555), (22, 9495050), (25, 8355644), (44, 4747525), (50, 4177822), (55, 3798020), (100, 2088911), (110, 1899010), (220, 949505), (275, 759604), (550, 379802), (1100, 189901)]