15665980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71209}}^1$

素因数の和:71229

約数の個数: 24

約数和(自身を含む): 35889840

約数和(自身を除く): 20223860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 71209, 142418, 284836, 356045, 712090, 783299, 1424180, 1566598, 3133196, 3916495, 7832990, 15665980]

約数ペア:

[(1, 15665980), (2, 7832990), (4, 3916495), (5, 3133196), (10, 1566598), (11, 1424180), (20, 783299), (22, 712090), (44, 356045), (55, 284836), (110, 142418), (220, 71209)]