20573740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5501}}^1$

素因数の和:5538

約数の個数: 48

約数和(自身を含む): 49914144

約数和(自身を除く): 29340404

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5501, 11002, 22004, 27505, 55010, 60511, 93517, 110020, 121022, 187034, 242044, 302555, 374068, 467585, 605110, 935170, 1028687, 1210220, 1870340, 2057374, 4114748, 5143435, 10286870, 20573740]

約数ペア:

[(1, 20573740), (2, 10286870), (4, 5143435), (5, 4114748), (10, 2057374), (11, 1870340), (17, 1210220), (20, 1028687), (22, 935170), (34, 605110), (44, 467585), (55, 374068), (68, 302555), (85, 242044), (110, 187034), (170, 121022), (187, 110020), (220, 93517), (340, 60511), (374, 55010), (748, 27505), (935, 22004), (1870, 11002), (3740, 5501)]