200784820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127079}}^1$

素因数の和:127167

約数の個数: 24

約数和(自身を含む): 426988800

約数和(自身を除く): 226203980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 127079, 254158, 508316, 635395, 1270790, 2541580, 10039241, 20078482, 40156964, 50196205, 100392410, 200784820]

約数ペア:

[(1, 200784820), (2, 100392410), (4, 50196205), (5, 40156964), (10, 20078482), (20, 10039241), (79, 2541580), (158, 1270790), (316, 635395), (395, 508316), (790, 254158), (1580, 127079)]