18523460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 40748400

約数和(自身を除く): 22224940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 116, 145, 218, 290, 293, 436, 545, 580, 586, 1090, 1172, 1465, 2180, 2930, 3161, 5860, 6322, 8497, 12644, 15805, 16994, 31610, 31937, 33988, 42485, 63220, 63874, 84970, 127748, 159685, 169940, 319370, 638740, 926173, 1852346, 3704692, 4630865, 9261730, 18523460]

約数ペア:

[(1, 18523460), (2, 9261730), (4, 4630865), (5, 3704692), (10, 1852346), (20, 926173), (29, 638740), (58, 319370), (109, 169940), (116, 159685), (145, 127748), (218, 84970), (290, 63874), (293, 63220), (436, 42485), (545, 33988), (580, 31937), (586, 31610), (1090, 16994), (1172, 15805), (1465, 12644), (2180, 8497), (2930, 6322), (3161, 5860)]