20565764360

素因数分解:

$2^3\times 5^1\times {\mathrm{9311}}^1\times {\mathrm{55219}}^1$

素因数の和:64541

約数の個数: 32

約数和(自身を含む): 46278777600

約数和(自身を除く): 25713013240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9311, 18622, 37244, 46555, 55219, 74488, 93110, 110438, 186220, 220876, 276095, 372440, 441752, 552190, 1104380, 2208760, 514144109, 1028288218, 2056576436, 2570720545, 4113152872, 5141441090, 10282882180, 20565764360]

約数ペア:

[(1, 20565764360), (2, 10282882180), (4, 5141441090), (5, 4113152872), (8, 2570720545), (10, 2056576436), (20, 1028288218), (40, 514144109), (9311, 2208760), (18622, 1104380), (37244, 552190), (46555, 441752), (55219, 372440), (74488, 276095), (93110, 220876), (110438, 186220)]