208981444

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 424916352

約数和(自身を除く): 215934908

約数列:

[1, 2, 4, 7, 14, 28, 137, 157, 274, 314, 347, 548, 628, 694, 959, 1099, 1388, 1918, 2198, 2429, 3836, 4396, 4858, 9716, 21509, 43018, 47539, 54479, 86036, 95078, 108958, 150563, 190156, 217916, 301126, 332773, 381353, 602252, 665546, 762706, 1331092, 1525412, 7463623, 14927246, 29854492, 52245361, 104490722, 208981444]

約数ペア:

[(1, 208981444), (2, 104490722), (4, 52245361), (7, 29854492), (14, 14927246), (28, 7463623), (137, 1525412), (157, 1331092), (274, 762706), (314, 665546), (347, 602252), (548, 381353), (628, 332773), (694, 301126), (959, 217916), (1099, 190156), (1388, 150563), (1918, 108958), (2198, 95078), (2429, 86036), (3836, 54479), (4396, 47539), (4858, 43018), (9716, 21509)]