20489090

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89083}}^1$

素因数の和:89113

約数の個数: 16

約数和(自身を含む): 38484288

約数和(自身を除く): 17995198

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 89083, 178166, 445415, 890830, 2048909, 4097818, 10244545, 20489090]

約数ペア:

[(1, 20489090), (2, 10244545), (5, 4097818), (10, 2048909), (23, 890830), (46, 445415), (115, 178166), (230, 89083)]