209216545

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{4493}}^1$

素因数の和:4704

約数の個数: 16

約数和(自身を含む): 256697280

約数和(自身を除く): 47480735

約数列:

[1, 5, 67, 139, 335, 695, 4493, 9313, 22465, 46565, 301031, 624527, 1505155, 3122635, 41843309, 209216545]

約数ペア:

[(1, 209216545), (5, 41843309), (67, 3122635), (139, 1505155), (335, 624527), (695, 301031), (4493, 46565), (9313, 22465)]