208017860

素因数分解:

$2^2\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{4813}}^1$

素因数の和:6983

約数の個数: 24

約数和(自身を含む): 437130456

約数和(自身を除く): 229112596

約数列:

[1, 2, 4, 5, 10, 20, 2161, 4322, 4813, 8644, 9626, 10805, 19252, 21610, 24065, 43220, 48130, 96260, 10400893, 20801786, 41603572, 52004465, 104008930, 208017860]

約数ペア:

[(1, 208017860), (2, 104008930), (4, 52004465), (5, 41603572), (10, 20801786), (20, 10400893), (2161, 96260), (4322, 48130), (4813, 43220), (8644, 24065), (9626, 21610), (10805, 19252)]