18329440

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1051}}^1$

素因数の和:1175

約数の個数: 48

約数和(自身を含む): 43742160

約数和(自身を除く): 25412720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1051, 1090, 1744, 2102, 2180, 3488, 4204, 4360, 5255, 8408, 8720, 10510, 16816, 17440, 21020, 33632, 42040, 84080, 114559, 168160, 229118, 458236, 572795, 916472, 1145590, 1832944, 2291180, 3665888, 4582360, 9164720, 18329440]

約数ペア:

[(1, 18329440), (2, 9164720), (4, 4582360), (5, 3665888), (8, 2291180), (10, 1832944), (16, 1145590), (20, 916472), (32, 572795), (40, 458236), (80, 229118), (109, 168160), (160, 114559), (218, 84080), (436, 42040), (545, 33632), (872, 21020), (1051, 17440), (1090, 16816), (1744, 10510), (2102, 8720), (2180, 8408), (3488, 5255), (4204, 4360)]