20198501860

素因数分解:

$2^2\times 5^1\times {\mathrm{2269}}^1\times {\mathrm{445097}}^1$

素因数の和:447375

約数の個数: 24

約数和(自身を含む): 42435643320

約数和(自身を除く): 22237141460

約数列:

[1, 2, 4, 5, 10, 20, 2269, 4538, 9076, 11345, 22690, 45380, 445097, 890194, 1780388, 2225485, 4450970, 8901940, 1009925093, 2019850186, 4039700372, 5049625465, 10099250930, 20198501860]

約数ペア:

[(1, 20198501860), (2, 10099250930), (4, 5049625465), (5, 4039700372), (10, 2019850186), (20, 1009925093), (2269, 8901940), (4538, 4450970), (9076, 2225485), (11345, 1780388), (22690, 890194), (45380, 445097)]