19704740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89567}}^1$

素因数の和:89587

約数の個数: 24

約数和(自身を含む): 45142272

約数和(自身を除く): 25437532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89567, 179134, 358268, 447835, 895670, 985237, 1791340, 1970474, 3940948, 4926185, 9852370, 19704740]

約数ペア:

[(1, 19704740), (2, 9852370), (4, 4926185), (5, 3940948), (10, 1970474), (11, 1791340), (20, 985237), (22, 895670), (44, 447835), (55, 358268), (110, 179134), (220, 89567)]