198199100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{180181}}^1$

素因数の和:180206

約数の個数: 36

約数和(自身を含む): 469193928

約数和(自身を除く): 270994828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 180181, 360362, 720724, 900905, 1801810, 1981991, 3603620, 3963982, 4504525, 7927964, 9009050, 9909955, 18018100, 19819910, 39639820, 49549775, 99099550, 198199100]

約数ペア:

[(1, 198199100), (2, 99099550), (4, 49549775), (5, 39639820), (10, 19819910), (11, 18018100), (20, 9909955), (22, 9009050), (25, 7927964), (44, 4504525), (50, 3963982), (55, 3603620), (100, 1981991), (110, 1801810), (220, 900905), (275, 720724), (550, 360362), (1100, 180181)]