211520

素因数分解:

$2^6\times 5^1\times {\mathrm{661}}^1$

素因数の和:678

約数の個数: 28

約数和(自身を含む): 504444

約数和(自身を除く): 292924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 661, 1322, 2644, 3305, 5288, 6610, 10576, 13220, 21152, 26440, 42304, 52880, 105760, 211520]

約数ペア:

[(1, 211520), (2, 105760), (4, 52880), (5, 42304), (8, 26440), (10, 21152), (16, 13220), (20, 10576), (32, 6610), (40, 5288), (64, 3305), (80, 2644), (160, 1322), (320, 661)]