208661860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{2141}}^1$

素因数の和:2604

約数の個数: 48

約数和(自身を含む): 479328192

約数和(自身を除く): 270666332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 443, 886, 1772, 2141, 2215, 4282, 4430, 4873, 8564, 8860, 9746, 10705, 19492, 21410, 23551, 24365, 42820, 47102, 48730, 94204, 97460, 117755, 235510, 471020, 948463, 1896926, 3793852, 4742315, 9484630, 10433093, 18969260, 20866186, 41732372, 52165465, 104330930, 208661860]

約数ペア:

[(1, 208661860), (2, 104330930), (4, 52165465), (5, 41732372), (10, 20866186), (11, 18969260), (20, 10433093), (22, 9484630), (44, 4742315), (55, 3793852), (110, 1896926), (220, 948463), (443, 471020), (886, 235510), (1772, 117755), (2141, 97460), (2215, 94204), (4282, 48730), (4430, 47102), (4873, 42820), (8564, 24365), (8860, 23551), (9746, 21410), (10705, 19492)]