19625980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89209}}^1$

素因数の和:89229

約数の個数: 24

約数和(自身を含む): 44961840

約数和(自身を除く): 25335860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89209, 178418, 356836, 446045, 892090, 981299, 1784180, 1962598, 3925196, 4906495, 9812990, 19625980]

約数ペア:

[(1, 19625980), (2, 9812990), (4, 4906495), (5, 3925196), (10, 1962598), (11, 1784180), (20, 981299), (22, 892090), (44, 446045), (55, 356836), (110, 178418), (220, 89209)]