208039120

素因数分解:

$2^4\times 5^1\times {\mathrm{2600489}}^1$

素因数の和:2600502

約数の個数: 20

約数和(自身を含む): 483691140

約数和(自身を除く): 275652020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600489, 5200978, 10401956, 13002445, 20803912, 26004890, 41607824, 52009780, 104019560, 208039120]

約数ペア:

[(1, 208039120), (2, 104019560), (4, 52009780), (5, 41607824), (8, 26004890), (10, 20803912), (16, 13002445), (20, 10401956), (40, 5200978), (80, 2600489)]