220175080

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{27941}}^1$

素因数の和:28149

約数の個数: 32

約数和(自身を含む): 497926440

約数和(自身を除く): 277751360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 27941, 55882, 111764, 139705, 223528, 279410, 558820, 1117640, 5504377, 11008754, 22017508, 27521885, 44035016, 55043770, 110087540, 220175080]

約数ペア:

[(1, 220175080), (2, 110087540), (4, 55043770), (5, 44035016), (8, 27521885), (10, 22017508), (20, 11008754), (40, 5504377), (197, 1117640), (394, 558820), (788, 279410), (985, 223528), (1576, 139705), (1970, 111764), (3940, 55882), (7880, 27941)]