208590940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{336437}}^1$

素因数の和:336477

約数の個数: 24

約数和(自身を含む): 452172672

約数和(自身を除く): 243581732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 336437, 672874, 1345748, 1682185, 3364370, 6728740, 10429547, 20859094, 41718188, 52147735, 104295470, 208590940]

約数ペア:

[(1, 208590940), (2, 104295470), (4, 52147735), (5, 41718188), (10, 20859094), (20, 10429547), (31, 6728740), (62, 3364370), (124, 1682185), (155, 1345748), (310, 672874), (620, 336437)]