219720040

素因数分解:

$2^3\times 5^1\times {\mathrm{5493001}}^1$

素因数の和:5493012

約数の個数: 16

約数和(自身を含む): 494370180

約数和(自身を除く): 274650140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5493001, 10986002, 21972004, 27465005, 43944008, 54930010, 109860020, 219720040]

約数ペア:

[(1, 219720040), (2, 109860020), (4, 54930010), (5, 43944008), (8, 27465005), (10, 21972004), (20, 10986002), (40, 5493001)]