187819220

素因数分解:

$2^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{5647}}^1$

素因数の和:7319

約数の個数: 24

約数和(自身を含む): 394727424

約数和(自身を除く): 206908204

約数列:

[1, 2, 4, 5, 10, 20, 1663, 3326, 5647, 6652, 8315, 11294, 16630, 22588, 28235, 33260, 56470, 112940, 9390961, 18781922, 37563844, 46954805, 93909610, 187819220]

約数ペア:

[(1, 187819220), (2, 93909610), (4, 46954805), (5, 37563844), (10, 18781922), (20, 9390961), (1663, 112940), (3326, 56470), (5647, 33260), (6652, 28235), (8315, 22588), (11294, 16630)]