17799980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{80909}}^1$

素因数の和:80929

約数の個数: 24

約数和(自身を含む): 40778640

約数和(自身を除く): 22978660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 80909, 161818, 323636, 404545, 809090, 889999, 1618180, 1779998, 3559996, 4449995, 8899990, 17799980]

約数ペア:

[(1, 17799980), (2, 8899990), (4, 4449995), (5, 3559996), (10, 1779998), (11, 1618180), (20, 889999), (22, 809090), (44, 404545), (55, 323636), (110, 161818), (220, 80909)]