20157776

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4051}}^1$

素因数の和:4370

約数の個数: 20

約数和(自身を含む): 39190944

約数和(自身を除く): 19033168

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4051, 4976, 8102, 16204, 32408, 64816, 1259861, 2519722, 5039444, 10078888, 20157776]

約数ペア:

[(1, 20157776), (2, 10078888), (4, 5039444), (8, 2519722), (16, 1259861), (311, 64816), (622, 32408), (1244, 16204), (2488, 8102), (4051, 4976)]