19207540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7937}}^1$

素因数の和:7968

約数の個数: 36

約数和(自身を含む): 44341668

約数和(自身を除く): 25134128

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7937, 15874, 31748, 39685, 79370, 87307, 158740, 174614, 349228, 436535, 873070, 960377, 1746140, 1920754, 3841508, 4801885, 9603770, 19207540]

約数ペア:

[(1, 19207540), (2, 9603770), (4, 4801885), (5, 3841508), (10, 1920754), (11, 1746140), (20, 960377), (22, 873070), (44, 436535), (55, 349228), (110, 174614), (121, 158740), (220, 87307), (242, 79370), (484, 39685), (605, 31748), (1210, 15874), (2420, 7937)]