209215528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{3361}}^1$

素因数の和:3649

約数の個数: 32

約数和(自身を含む): 406667520

約数和(自身を除く): 197451992

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 251, 502, 1004, 2008, 3361, 6722, 7781, 13444, 15562, 26888, 31124, 62248, 104191, 208382, 416764, 833528, 843611, 1687222, 3374444, 6748888, 26151941, 52303882, 104607764, 209215528]

約数ペア:

[(1, 209215528), (2, 104607764), (4, 52303882), (8, 26151941), (31, 6748888), (62, 3374444), (124, 1687222), (248, 843611), (251, 833528), (502, 416764), (1004, 208382), (2008, 104191), (3361, 62248), (6722, 31124), (7781, 26888), (13444, 15562)]