208020560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{236387}}^1$

素因数の和:236411

約数の個数: 40

約数和(自身を含む): 527618016

約数和(自身を除く): 319597456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 236387, 472774, 945548, 1181935, 1891096, 2363870, 2600257, 3782192, 4727740, 5200514, 9455480, 10401028, 13001285, 18910960, 20802056, 26002570, 41604112, 52005140, 104010280, 208020560]

約数ペア:

[(1, 208020560), (2, 104010280), (4, 52005140), (5, 41604112), (8, 26002570), (10, 20802056), (11, 18910960), (16, 13001285), (20, 10401028), (22, 9455480), (40, 5200514), (44, 4727740), (55, 3782192), (80, 2600257), (88, 2363870), (110, 1891096), (176, 1181935), (220, 945548), (440, 472774), (880, 236387)]